[C#]Parseur de fichier .reg

**smyley** · 11/01/2009, 04h15

Vu qu'une fois de plus j'ai du le faire moi même ... (

)
Voici donc un parseur de fichier .reg. Il prend en entrée un StreamReader (tout en sachant que normalement un fichier reg c'est de l'unicode pas de l'ascii, du moins de puis Windows 2000/XP) et en sortit donne une arborescence de clefs/valeurs sous formes de classes. Normalement ça gère bien toutes les valeurs hexa en les convertissant en string pour les MULTI_SZ entre autre et il reconnais certains caractères d'échappements.

Normalement c'est du C# 3.0, mais c'est juste la manière d'écrire les propriétés qui poserai problème à une utilisation à partir de VS 2005 (vu que ça marche en C# 2.0 avec VS 2008). Donc si ça pose problème, il suffit de compléter les propriétés avec les champs correspondants.

Le code donc :

Code c# :

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using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Data;
 
namespace DreamShield.Deployment.Utils
{
    /// <summary>
    /// Classe qui permet de représenter les clefs du registre.
    /// Partout où une variable name est utilisée, il s'agit d'un chemin
    /// au sens du registre qui peut être HKEY_LOCAL_MACHINE\Microsoft\Windows
    /// ou encore CurrentVersion\Uninstall.
    /// </summary>
    public class LocalRegistryKey
    {
        #region Constants
 
        public const string HKLM = "HKEY_LOCAL_MACHINE";
        public const string HKCU = "HKEY_CURRENT_USER";
        public const string HKCR = "HKEY_CLASSES_ROOT";
        public const string HKU = "HKEY_USERS";
 
        #endregion
 
        #region Creation
 
        /// <summary>
        /// Crée un nouvel objet de registre.
        /// La clef renvoyée est un "parent virtuel" qui contient les clefs
        /// HKLM, HKCU, HKCR et HKU
        /// </summary>
        /// <returns></returns>
        public static LocalRegistryKey CreateRepository()
        {
            LocalRegistryKey res = new LocalRegistryKey(null, null);
            res.Childs.AddRange(new LocalRegistryKey[]{
                    new LocalRegistryKey(null, HKLM),
                    new LocalRegistryKey(null, HKCU),
                    new LocalRegistryKey(null, HKCR),
                    new LocalRegistryKey(null, HKU)
                });
            res.GlobalRoot = true;
 
            return res;
        }
 
        #endregion
 
        #region Globals & Constructor
 
        /// <summary>
        /// Clef parente, null pour les clefs racines
        /// </summary>
        public virtual LocalRegistryKey Parent { get; protected set; }
 
        protected List<LocalRegistryKey> Childs { get; private set; }
 
        /// <summary>
        /// Clefs enfantes
        /// </summary>
        public virtual LocalRegistryKey[] SubKeys
        {
            get { return Childs.ToArray(); }
        }
 
        private LocalRegistryKey(LocalRegistryKey parent, string name)
        {
            if (parent != null && String.IsNullOrEmpty(name))
                throw new ArgumentNullException("name");
 
            GlobalRoot = false;
            Parent = parent;
            _name = name;
 
            Childs = new List<LocalRegistryKey>();
 
            if (!GlobalRoot)
            {
                InitRegValues();
            }
        }
 
        #endregion
 
        #region Access
 
        /// <summary>
        /// Indique si cette clef est le parent virtuel des clefs racines
        /// </summary>
        public virtual bool GlobalRoot { get; protected set; }
 
        /// <summary>
        /// Indique si la clef actuelle est une racine
        /// </summary>
        public virtual bool IsRoot
        {
            get { return Parent == null; }
        }
 
        string _name = null;
 
        /// <summary>
        /// Nom de la clef. Il ne peut être modifié que pour les clefs non racines
        /// </summary>
        public virtual string Name
        {
            get
            {
                return _name;
            }
            set
            {
                if (IsRoot)
                    throw new InvalidOperationException("Impossible de renommer une racine");
                else
                {
                    if (String.IsNullOrEmpty(value))
                        throw new ArgumentNullException("value");
                    else if (String.Equals(_name, value, StringComparison.OrdinalIgnoreCase))
                        _name = value;
                    else
                    {
                        if (Parent.KeyExists(value))
                            throw new DuplicateNameException(value);
                        else
                            _name = value;
                    }
                }
            }
        }
 
        /// <summary>
        /// Indique si la clef spécifiée existe
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public virtual bool KeyExists(string name)
        {
            LocalRegistryKey key = null;
            return TryGetKey(name, out key);
        }
 
        /// <summary>
        /// Obtients une clef (exception si elle n'existe pas)
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public virtual LocalRegistryKey Key(string name)
        {
            return Key(name, false);
        }
 
        /// <summary>
        /// Charge la clef en la créant si elle n'existe pas et que canCreate vaut true.
        /// </summary>
        /// <remarks>Aucune clef ne peut être crée au même niveau que les clefs racines</remarks>
        /// <param name="name"></param>
        /// <param name="canCreate">Indique si la clef doit être crée si elle n'existe pas</param>
        /// <returns></returns>
        public virtual LocalRegistryKey Key(string name, bool canCreate)
        {
            LocalRegistryKey key = null;
            if (TryGetKey(name, out key, canCreate))
                return key;
            else
                throw new KeyNotFoundException(name);
        }
 
        /// <summary>
        /// Tente d'obtenir la clef spécifiée et la renvoi si elle existe, ou renvoi
        /// nul sinon dans key
        /// </summary>
        /// <param name="name"></param>
        /// <param name="key"></param>
        /// <returns></returns>
        public virtual bool TryGetKey(string name, out LocalRegistryKey key)
        {
            return TryGetKey(name, out key, false);
        }
 
        protected virtual bool TryGetKey(string name, out LocalRegistryKey key, bool canCreate)
        {
            if (String.IsNullOrEmpty(name))
                throw new ArgumentNullException("value");
 
            string[] secs = name.Split(new char[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
 
            key = this;
 
            for (int i = 0; i < secs.Length; i++)
            {
                key = FindKey(key, secs[i], canCreate);
                if (key == null)
                    break;
            }
 
            return key != null;
        }
 
        protected virtual LocalRegistryKey FindKey(LocalRegistryKey key, string name, bool canCreate)
        {
            if (String.IsNullOrEmpty(name))
                throw new ArgumentNullException("name");
            if (name.Contains("]") || name.Contains("["))
                throw new InvalidDataException("Nom invalide :" + name);
 
            foreach (var item in key.Childs)
            {
                if (item.Name != null && item.Name.Equals(name, StringComparison.OrdinalIgnoreCase))
                    return item;
            }
 
            if (canCreate)
            {
                if (key.GlobalRoot)
                {
                    /* Impossible de créer une clef racine */
                    return null;
                }
                else
                {
                    LocalRegistryKey n_key = new LocalRegistryKey(key, name);
                    key.Childs.Add(n_key);
                    return n_key;
                }
            }
            else
            {
                return null;
            }
        }
 
        #endregion
 
        #region Utils
 
        /// <summary>
        /// Efface tous le contenu des clefs
        /// </summary>
        /// <remarks>Ne peut pas être appelé sur la racine virtuelle</remarks>
        public virtual void Clear()
        {
            if (GlobalRoot)
                throw new InvalidOperationException("Impossible de supprimer les clefs racines");
            else
            {
                Childs.Clear();
                Values.Clear();
            }
        }
 
        /// <summary>
        /// Supprime la clef
        /// </summary>
        /// <remarks>Une clef racine ne peut pas être supprimée.</remarks>
        public virtual void Delete()
        {
            if (IsRoot)
                throw new InvalidOperationException("Impossible de supprimer une racine");
            else
            {
                Parent.Childs.Remove(this);
 
                Childs.Clear();
                if (Values != null)
                {
                    Values.Clear();
                }
 
                Values = null;
                Childs = null;
                Parent = null;
                _name = null;
            }
        }
 
        /// <summary>
        /// Obtient le nom complet de la clef
        /// </summary>
        public virtual string FullName
        {
            get
            {
                return (Parent != null ? Parent.FullName + "\\" : "") + Name;
            }
        }
 
        public override string ToString()
        {
            string s = FullName;
            return String.IsNullOrEmpty(s) ? base.ToString() : s;
        }
 
        #endregion
 
        #region Values
 
        /// <summary>
        /// Liste des valeurs.
        /// Pour la valeur par défaut, utiliser comme clef "" (la chaine vide), null étant une valeur
        /// de clef interdite
        /// </summary>
        public virtual Dictionary<string, LocalRegistryValue> Values { get; protected set; }
 
        protected static RegValueKeysComparer RegValueKeysComparerInstance = new RegValueKeysComparer();
 
        protected void InitRegValues()
        {
            Values = new Dictionary<string, LocalRegistryValue>(RegValueKeysComparerInstance);
        }
 
        /* Juste par sécurité */
        protected class RegValueKeysComparer : IEqualityComparer<string>
        {
            #region IEqualityComparer<string> Membres
 
            public virtual bool Equals(string x, string y)
            {
                if (String.IsNullOrEmpty(x))
                    return String.IsNullOrEmpty(y);
                else
                {
                    return String.Equals(x, y, StringComparison.OrdinalIgnoreCase);
                }
            }
 
            public virtual int GetHashCode(string obj)
            {
                return obj == null ? 0 : obj.GetHashCode();
            }
 
            #endregion
        }
 
        #endregion
    }
 
    public class LocalRegistryValue
    {
        public LocalRegistryValue(ValueType vType, object vVal)
        {
            ValueType = vType;
            Value = vVal;
        }
 
        protected ValueType valueType = ValueType.Binary;
 
        /// <summary>
        /// Type de valeur
        /// </summary>
        /// <remarks>Changer de type efface automatiquement la variable Value</remarks>
        public virtual ValueType ValueType
        {
            get
            {
                return valueType;
            }
            set
            {
                if (valueType != value)
                {
                    valueType = value;
                    _value = null;
                }
            }
        }
 
        protected object _value = null;
 
        /// <summary>
        /// Valeur, doit être convertible en ValueType
        /// </summary>
        public virtual object Value
        {
            get { return _value; }
            set
            {
                if (!CheckValue(ValueType, value))
                    throw new InvalidDataException(String.Format("L'argument {0} n'est pas convertible en {1}", value, ValueType));
                else
                    _value = value;
            }
        }
 
        protected virtual bool CheckValue(ValueType ValueType, object value)
        {
            if (value == null)
                return true;
            else
            {
                switch (ValueType)
                {
                    case ValueType.Binary: { return typeof(byte[]).IsAssignableFrom(value.GetType()); }
                    case ValueType.DWORD: { return typeof(uint).IsAssignableFrom(value.GetType()); }
                    case ValueType.QWORD: { return typeof(ulong).IsAssignableFrom(value.GetType()); }
                    case ValueType.MultiString: { return typeof(string[]).IsAssignableFrom(value.GetType()); }
                    case ValueType.ExpandableString:
                    case ValueType.String:
                        {
                            return typeof(string).IsAssignableFrom(value.GetType());
                        }
                    default: { return false; }
                }
            }
        }
 
        public override string ToString()
        {
            return String.Format("{0}", Value);
        }
    }
 
    public enum ValueType
    {
        /// <summary>
        /// Binary registry value type : convertit en byte[]
        /// </summary>
        Binary,
        /// <summary>
        /// DWORD registry value type : convertit en uint
        /// </summary>
        DWORD,
        /// <summary>
        /// QWORD registry value type : convertit en ulong
        /// </summary>
        QWORD,
        /// <summary>
        /// Expandable string registry value type : convertit en string
        /// </summary>
        ExpandableString,
        /// <summary>
        /// MultiString registry value type : convertit en string[]
        /// </summary>
        MultiString,
        /// <summary>
        /// String registry value type : convertit en string
        /// </summary>
        String
    }
 
    public static class RegFileImporter
    {
        public static LocalRegistryKey ProcessRegistryFile(StreamReader input)
        {
            return ProcessRegistryFile(input, null);
        }
 
        public static LocalRegistryKey ProcessRegistryFile(StreamReader input, LocalRegistryKey result)
        {
            if (result == null)
                result = LocalRegistryKey.CreateRepository();
 
            LocalRegistryKey last = null;
 
            string current_line = "";
            while (!input.EndOfStream)
            {
                current_line = input.ReadLine();
                if (current_line.StartsWith("["))
                {
                    /* section */
                    int end = current_line.IndexOf("]");
                    if (end < 1)
                        throw new InvalidDataException("Ligne invalide :" + current_line);
                    else
                    {
                        string key_name = current_line.Substring(1, end - 1);
 
                        last = result.Key(key_name, true);
                    }
                }
                else if (current_line.StartsWith("@"))
                {
                    /* valeur par défaut */
                    ReadValue(current_line, input, last);
                }
                else if (current_line.StartsWith("\""))
                {
                    /* valeur nommée */
                    ReadValue(current_line, input, last);
                }
            }
 
            return result;
        }
 
        private static void ReadValue(string current_line, StreamReader input, LocalRegistryKey last)
        {
            if (String.IsNullOrEmpty(current_line))
                return;
            else
            {
                string[] secs = current_line.Split(new char[] { '=' }, 2);
                if (secs.Length != 2)
                    throw new InvalidDataException("Ligne invalide :" + current_line);
                else
                {
                    string name = secs[0];
                    string data = secs[1];
 
                    if (name == "@")
                        name = "";
                    else
                        name = name.Substring(1, name.Length - 2); /* On retire les quotes */
 
                    if (String.IsNullOrEmpty(data) || data == "\"\"")
                    {
                        last.Values[name] = new LocalRegistryValue(ValueType.String, null);
                    }
                    else
                    {
                        if (data.StartsWith("hex:")) // binary
                        {
                            last.Values[name] = new LocalRegistryValue(ValueType.Binary,
                                (byte[])ParseBinaryArray(data.Substring("hex:".Length), input));
                        }
                        else if (data.StartsWith("dword:")) //dword
                        {
                            last.Values[name] = new LocalRegistryValue(ValueType.DWORD,
                                (uint)ParseDword(data.Substring("dword:".Length), input));
                        }
                        else if (data.StartsWith("hex(b):")) //qword
                        {
                            /* Pourquoi le QWORD est-il stoqué sous la form de byte[] ?? */
                            byte[] b_val = ParseBinaryArray(data.Substring("hex(b):".Length), input);
                            ulong val = BitConverter.ToUInt64(b_val, 0);
                            last.Values[name] = new LocalRegistryValue(ValueType.QWORD,val);
                        }
                        else if (data.StartsWith("hex(2):")) // expandable string
                        {
                            string str = ParseString(data.Substring("hex(2):".Length), input);
                            last.Values[name] = new LocalRegistryValue(ValueType.ExpandableString,
                                Encoding.Unicode.GetString(BytesFromString(str)));
                        }
                        else if (data.StartsWith("hex(7):")) // multi-string
                        {
                            string str = ParseString(data.Substring("hex(7):".Length), input);
                            last.Values[name] = new LocalRegistryValue(ValueType.MultiString,
                                (string[])ParseMultiString(str));
                        }
                        else // string
                        {
                            last.Values[name] = new LocalRegistryValue(ValueType.String,
                                (string)ArrangeString(ParseString(data.Substring(1, data.Length - 2), input)));
                        }
                    }
                }
            }
        }
 
        private static string ArrangeString(string p)
        {
            string res = "";
 
            int actual = 0;
 
            using (StringReader reader = new StringReader(p))
            {
                while (true)
                {
                    actual = reader.Read();
                    if (actual < 0)
                        break;
                    else
                    {
                        char c = (char)actual;
                        if (c == '\\') /* échappement */
                        {
                            int escape = reader.Read();
                            if (escape < 0)
                                throw new InvalidDataException("Séquence d'échappement invalide : fin du flux rencontré pour la ligne : " + p);
                            else
                            {
                                char e = (char)escape;
                                switch (e)
                                {
                                    case 'n': { res += "\n"; break; }
                                    case 'r': { res += "\r"; break; }
                                    case '\\': { res += "\\"; break; }
                                    case '0': { res += "\0"; break; }
                                    case '\"': { res += "\""; break; }
                                    case '\'': { res += "\'"; break; }
                                    default:
                                        throw new InvalidDataException(String.Format("Séquence d'échappement non reconnue, {0}, à la ligne {1}", c.ToString() + e.ToString(), p));
                                }
                            }
                        }
                        else
                        {
                            res += c.ToString();
                        }
                    }
                }
            }
 
            return res;
        }
 
        private static string[] ParseMultiString(string str)
        {
            if (String.IsNullOrEmpty(str))
                return new string[0];
            else
            {
                str = Encoding.Unicode.GetString(BytesFromString(str));
 
                return str.Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
            }
        }
 
        private static byte[] BytesFromString(string p)
        {
            string[] parts = p.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
            byte[] res = new byte[parts.Length];
 
            for (int i = 0; i < parts.Length; i++)
            {
                res[i] = byte.Parse(parts[i], System.Globalization.NumberStyles.HexNumber);
            }
 
            return res;
        }
 
        private static string ParseString(string p, StreamReader input)
        {
            return ReadFullString(p, input);
        }
 
        private static uint ParseDword(string p, StreamReader input)
        {
            return uint.Parse(p, System.Globalization.NumberStyles.HexNumber);
        }
 
        private static byte[] ParseBinaryArray(string p, StreamReader input)
        {
            return BytesFromString(ReadFullString(p, input));
        }
 
        private static string ReadFullString(string p, StreamReader input)
        {
            string s = "";
            bool do_next = false;
            do
            {
                if (p.EndsWith("\\"))
                {
                    s += p.Substring(0, p.Length - 1); ;
                    do_next = true;
                }
                else
                {
                    s += p;
                    do_next = false;
                }
 
                if (do_next)
                {
                    p = input.ReadLine();
                    p = p.Substring(2); /* 2 espaces au début de la ligne */
                }
            }
            while (do_next);
 
            return s;
        }
    }
}

Exemple d'utilisation, un dump :

Code c# :

Sélectionner tout - Visualiser dans une fenêtre à part

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private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog m = new OpenFileDialog();
            if (m.ShowDialog() == DialogResult.OK)
            {
                using (FileStream fs = new FileStream(m.FileName, FileMode.Open, FileAccess.Read))
                {
                    using (StreamReader rd = new StreamReader(fs, true))
                    {
                        var ts = RegFileImporter.ProcessRegistryFile(rd);
                        DumpTree(ts);
                    }
                }
            }
        }
 
private void DumpTree(LocalRegistryKey ts)
        {
            Trace.WriteLine(ts.Name);
            if (!ts.GlobalRoot)
            {
                foreach (var item in ts.Values)
                {
                    if (item.Value.ValueType == DreamShield.Deployment.Utils.ValueType.Binary)
                    {
                        Trace.WriteLine(String.IsNullOrEmpty(item.Key) ? "(Default)" : item.Key);
                        Trace.Indent();
                        byte[] val = (byte[])item.Value.Value;
                        for (int i = 0; i < val.Length; i++)
                        {
                            Trace.Write(val[i].ToString("X") + ",");
                        }
                        Trace.WriteLine("");
                        Trace.Unindent();
                    }
                    else if (item.Value.ValueType == DreamShield.Deployment.Utils.ValueType.MultiString)
                    {
                        Trace.WriteLine(String.IsNullOrEmpty(item.Key) ? "(Default)" : item.Key);
                        Trace.Indent();
                        string[] val = (string[])item.Value.Value;
                        for (int i = 0; i < val.Length; i++)
                        {
                            Trace.Write(val[i] + " | ");
                        }
                        Trace.WriteLine("");
                        Trace.Unindent();
                    }
                    else
                    {
                        Trace.WriteLine(String.Format("-{0}:{1}", String.IsNullOrEmpty(item.Key) ? "(Default)" : item.Key, item.Value));
                    }
                }
            }
 
            Trace.Indent();
            foreach (var item in ts.SubKeys)
            {
                DumpTree(item);
            }
            Trace.Unindent();
        }

**sevyc64** · 11/01/2009, 10h34

Bien, ça a le mérite d'exister maintenant. Un code à garder sous la main.

J'ai fait un petit test rapide, premier essai, premier plantage. Une valeur de type DWORD codé ainsi ne passe pas :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

"ProcessImageColumnWidth"=dword:000000c8

C'est pas bien méchant, je pense, une histoire d'hexa à gérer. En VB je saurais faire, mais en C# je suis pas encore assez à l'aise.

**smyley** · 11/01/2009, 12h35

Alala ... il était tard j'ai pas fait suffisamment de tests. Je corrige et je reviens.

**smyley** · 11/01/2009, 12h52

Voilà, j'ai modifié le premier message avec le nouveau code, et je l'ai testé sur

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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Windows Registry Editor Version 5.00
 
[HKEY_LOCAL_MACHINE\SOFTWARE\X\Test]
"Test"="Test"
"TestBin"=hex:4a,65,20,73,75,69,73,20,75,6e,20,70,65,74,69,74,20,63,68,61,74,\
  20,71,75,69,20,61,69,6d,65,20,62,69,65,6e,20,73,65,20,72,6f,75,6c,65,72,20,\
  70,61,72,20,74,65,72,72,65
"TestDWord"=dword:000007c6
"TestQWord"=hex(b):c6,07,00,00,00,00,00,00
"TestMulti"=hex(7):4a,00,65,00,20,00,73,00,75,00,69,00,73,00,00,00,55,00,6e,00,\
  20,00,70,00,65,00,74,00,69,00,74,00,00,00,63,00,68,00,61,00,74,00,00,00,00,\
  00
"TestExp"=hex(2):25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,\
  6c,00,65,00,73,00,25,00,5c,00,4c,00,6f,00,6c,00,00,00

Et ça a marché nikel, donc ça devrais aller.

Sinon pour la conversion en VB ça donne ça (pas testé):

Code vb :

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Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.IO
Imports System.Data
 
Namespace DreamShield.Deployment.Utils
    ''' <summary>
    ''' Classe qui permet de représenter les clefs du registre.
    ''' Partout où une variable name est utilisée, il s'agit d'un chemin
    ''' au sens du registre qui peut être HKEY_LOCAL_MACHINE\Microsoft\Windows
    ''' ou encore CurrentVersion\Uninstall.
    ''' </summary>
    Public Class LocalRegistryKey
        #Region "Constants"
 
        Public Const HKLM As String = "HKEY_LOCAL_MACHINE"
        Public Const HKCU As String = "HKEY_CURRENT_USER"
        Public Const HKCR As String = "HKEY_CLASSES_ROOT"
        Public Const HKU As String = "HKEY_USERS"
 
        #End Region
 
        #Region "Creation"
 
        ''' <summary>
        ''' Crée un nouvel objet de registre.
        ''' La clef renvoyée est un "parent virtuel" qui contient les clefs
        ''' HKLM, HKCU, HKCR et HKU
        ''' </summary>
        ''' <returns></returns>
        Public Shared Function CreateRepository() As LocalRegistryKey
            Dim res As New LocalRegistryKey(Nothing, Nothing)
            res.Childs.AddRange(New LocalRegistryKey() {New LocalRegistryKey(Nothing, HKLM), New LocalRegistryKey(Nothing, HKCU), New LocalRegistryKey(Nothing, HKCR), New LocalRegistryKey(Nothing, HKU)})
            res.GlobalRoot = True
 
            Return res
        End Function
 
        #End Region
 
        #Region "Globals & Constructor"
 
        ''' <summary>
        ''' Clef parente, null pour les clefs racines
        ''' </summary>
Private _Parent As LocalRegistryKey
        Public Overridable Property Parent() As LocalRegistryKey
            Get
                Return _Parent
            End Get
            Protected Set(ByVal value As LocalRegistryKey)
                _Parent = value
            End Set
        End Property
 
Private _Childs As List(Of LocalRegistryKey)
        Protected Property Childs() As List(Of LocalRegistryKey)
            Get
                Return _Childs
            End Get
            Private Set(ByVal value As List(Of LocalRegistryKey))
                _Childs = value
            End Set
        End Property
 
        ''' <summary>
        ''' Clefs enfantes
        ''' </summary>
        Public Overridable ReadOnly Property SubKeys() As LocalRegistryKey()
            Get
                Return Childs.ToArray()
            End Get
        End Property
 
        Private Sub New(ByVal parent__1 As LocalRegistryKey, ByVal name As String)
            If parent__1 IsNot Nothing AndAlso [String].IsNullOrEmpty(name) Then
                Throw New ArgumentNullException("name")
            End If
 
            GlobalRoot = False
            Parent = parent__1
            _name = name
 
            Childs = New List(Of LocalRegistryKey)()
 
            If Not GlobalRoot Then
                InitRegValues()
            End If
        End Sub
 
        #End Region
 
        #Region "Access"
 
        ''' <summary>
        ''' Indique si cette clef est le parent virtuel des clefs racines
        ''' </summary>
Private _GlobalRoot As Boolean
        Public Overridable Property GlobalRoot() As Boolean
            Get
                Return _GlobalRoot
            End Get
            Protected Set(ByVal value As Boolean)
                _GlobalRoot = value
            End Set
        End Property
 
        ''' <summary>
        ''' Indique si la clef actuelle est une racine
        ''' </summary>
        Public Overridable ReadOnly Property IsRoot() As Boolean
            Get
                Return Parent Is Nothing
            End Get
        End Property
 
        Private _name As String = Nothing
 
        ''' <summary>
        ''' Nom de la clef. Il ne peut être modifié que pour les clefs non racines
        ''' </summary>
        Public Overridable Property Name() As String
            Get
                Return _name
            End Get
            Set(ByVal value As String)
                If IsRoot Then
                    Throw New InvalidOperationException("Impossible de renommer une racine")
                Else
                    If [String].IsNullOrEmpty(value) Then
                        Throw New ArgumentNullException("value")
                    ElseIf [String].Equals(_name, value, StringComparison.OrdinalIgnoreCase) Then
                        _name = value
                    Else
                        If Parent.KeyExists(value) Then
                            Throw New DuplicateNameException(value)
                        Else
                            _name = value
                        End If
                    End If
                End If
            End Set
        End Property
 
        ''' <summary>
        ''' Indique si la clef spécifiée existe
        ''' </summary>
        ''' <param name="name"></param>
        ''' <returns></returns>
        Public Overridable Function KeyExists(ByVal name As String) As Boolean
            Dim key As LocalRegistryKey = Nothing
            Return TryGetKey(name, key)
        End Function
 
        ''' <summary>
        ''' Obtients une clef (exception si elle n'existe pas)
        ''' </summary>
        ''' <param name="name"></param>
        ''' <returns></returns>
        Public Overridable Function Key(ByVal name As String) As LocalRegistryKey
            Return Key(name, False)
        End Function
 
        ''' <summary>
        ''' Charge la clef en la créant si elle n'existe pas et que canCreate vaut true.
        ''' </summary>
        ''' <remarks>Aucune clef ne peut être crée au même niveau que les clefs racines</remarks>
        ''' <param name="name"></param>
        ''' <param name="canCreate">Indique si la clef doit être crée si elle n'existe pas</param>
        ''' <returns></returns>
        Public Overridable Function Key(ByVal name As String, ByVal canCreate As Boolean) As LocalRegistryKey
            Dim key As LocalRegistryKey = Nothing
            If TryGetKey(name, key, canCreate) Then
                Return key
            Else
                Throw New KeyNotFoundException(name)
            End If
        End Function
 
        ''' <summary>
        ''' Tente d'obtenir la clef spécifiée et la renvoi si elle existe, ou renvoi
        ''' nul sinon dans key
        ''' </summary>
        ''' <param name="name"></param>
        ''' <param name="key"></param>
        ''' <returns></returns>
        Public Overridable Function TryGetKey(ByVal name As String, ByRef key As LocalRegistryKey) As Boolean
            Return TryGetKey(name, key, False)
        End Function
 
        Protected Overridable Function TryGetKey(ByVal name As String, ByRef key As LocalRegistryKey, ByVal canCreate As Boolean) As Boolean
            If [String].IsNullOrEmpty(name) Then
                Throw New ArgumentNullException("value")
            End If
 
            Dim secs As String() = name.Split(New Char() {"\"c}, StringSplitOptions.RemoveEmptyEntries)
 
            key = Me
 
            For i As Integer = 0 To secs.Length - 1
                key = FindKey(key, secs(i), canCreate)
                If key Is Nothing Then
                    Exit For
                End If
            Next
 
            Return key IsNot Nothing
        End Function
 
        Protected Overridable Function FindKey(ByVal key As LocalRegistryKey, ByVal name As String, ByVal canCreate As Boolean) As LocalRegistryKey
            If [String].IsNullOrEmpty(name) Then
                Throw New ArgumentNullException("name")
            End If
            If name.Contains("]") OrElse name.Contains("[") Then
                Throw New InvalidDataException("Nom invalide :" & name)
            End If
 
            For Each item In key.Childs
                If item.Name IsNot Nothing AndAlso item.Name.Equals(name, StringComparison.OrdinalIgnoreCase) Then
                    Return item
                End If
            Next
 
            If canCreate Then
                If key.GlobalRoot Then
                    ' Impossible de créer une clef racine 
 
                    Return Nothing
                Else
                    Dim n_key As New LocalRegistryKey(key, name)
                    key.Childs.Add(n_key)
                    Return n_key
                End If
            Else
                Return Nothing
            End If
        End Function
 
        #End Region
 
        #Region "Utils"
 
        ''' <summary>
        ''' Efface tous le contenu des clefs
        ''' </summary>
        ''' <remarks>Ne peut pas être appelé sur la racine virtuelle</remarks>
        Public Overridable Sub Clear()
            If GlobalRoot Then
                Throw New InvalidOperationException("Impossible de supprimer les clefs racines")
            Else
                Childs.Clear()
                Values.Clear()
            End If
        End Sub
 
        ''' <summary>
        ''' Supprime la clef
        ''' </summary>
        ''' <remarks>Une clef racine ne peut pas être supprimée.</remarks>
        Public Overridable Sub Delete()
            If IsRoot Then
                Throw New InvalidOperationException("Impossible de supprimer une racine")
            Else
                Parent.Childs.Remove(Me)
 
                Childs.Clear()
                If Values IsNot Nothing Then
                    Values.Clear()
                End If
 
                Values = Nothing
                Childs = Nothing
                Parent = Nothing
                _name = Nothing
            End If
        End Sub
 
        ''' <summary>
        ''' Obtient le nom complet de la clef
        ''' </summary>
        Public Overridable ReadOnly Property FullName() As String
            Get
                Return (If(Parent IsNot Nothing, Parent.FullName & "\", "")) + Name
            End Get
        End Property
 
        Public Overloads Overrides Function ToString() As String
            Dim s As String = FullName
            Return If([String].IsNullOrEmpty(s), MyBase.ToString(), s)
        End Function
 
        #End Region
 
        #Region "Values"
 
        ''' <summary>
        ''' Liste des valeurs.
        ''' Pour la valeur par défaut, utiliser comme clef "" (la chaine vide), null étant une valeur
        ''' de clef interdite
        ''' </summary>
Private _Values As Dictionary(Of String, LocalRegistryValue)
        Public Overridable Property Values() As Dictionary(Of String, LocalRegistryValue)
            Get
                Return _Values
            End Get
            Protected Set(ByVal value As Dictionary(Of String, LocalRegistryValue))
                _Values = value
            End Set
        End Property
 
        Protected Shared RegValueKeysComparerInstance As New RegValueKeysComparer()
 
        Protected Sub InitRegValues()
            Values = New Dictionary(Of String, LocalRegistryValue)(RegValueKeysComparerInstance)
        End Sub
 
        ' Juste par sécurité 
 
        Protected Class RegValueKeysComparer
            Implements IEqualityComparer(Of String)
            #Region "IEqualityComparer Membres"
 
            Public Overridable Function Equals(ByVal x As String, ByVal y As String) As Boolean
                If [String].IsNullOrEmpty(x) Then
                    Return [String].IsNullOrEmpty(y)
                Else
                    Return [String].Equals(x, y, StringComparison.OrdinalIgnoreCase)
                End If
            End Function
 
            Public Overridable Function GetHashCode(ByVal obj As String) As Integer
                Return If(obj Is Nothing, 0, obj.GetHashCode())
            End Function
        End Class
 
        #End Region
    End Class
 
    #End Region
 
    Public Class LocalRegistryValue
        Public Sub New(ByVal vType As ValueType, ByVal vVal As Object)
            ValueType = vType
            Value = vVal
        End Sub
 
        Protected m_valueType As ValueType = ValueType.Binary
 
        ''' <summary>
        ''' Type de valeur
        ''' </summary>
        ''' <remarks>Changer de type efface automatiquement la variable Value</remarks>
        Public Overridable Property ValueType() As ValueType
            Get
                Return m_valueType
            End Get
            Set(ByVal value As ValueType)
                If m_valueType <> value Then
                    m_valueType = value
                    _value = Nothing
                End If
            End Set
        End Property
 
        Protected _value As Object = Nothing
 
        ''' <summary>
        ''' Valeur, doit être convertible en ValueType
        ''' </summary>
        Public Overridable Property Value() As Object
            Get
                Return _value
            End Get
            Set(ByVal value As Object)
                If Not CheckValue(ValueType, value) Then
                    Throw New InvalidDataException([String].Format("L'argument {0} n'est pas convertible en {1}", value, ValueType))
                Else
                    _value = value
                End If
            End Set
        End Property
 
        Protected Overridable Function CheckValue(ByVal ValueType As ValueType, ByVal value As Object) As Boolean
            If value Is Nothing Then
                Return True
            Else
                Select Case ValueType
                    Case ValueType.Binary
                        If True Then
                            Return GetType(Byte()).IsAssignableFrom(value.[GetType]())
                        End If
                    Case ValueType.DWORD
                        If True Then
                            Return GetType(UInteger).IsAssignableFrom(value.[GetType]())
                        End If
                    Case ValueType.QWORD
                        If True Then
                            Return GetType(ULong).IsAssignableFrom(value.[GetType]())
                        End If
                    Case ValueType.MultiString
                        If True Then
                            Return GetType(String()).IsAssignableFrom(value.[GetType]())
                        End If
                    Case ValueType.ExpandableString, ValueType.[String]
                        If True Then
                            Return GetType(String).IsAssignableFrom(value.[GetType]())
                        End If
                    Case Else
                        If True Then
                            Return False
                        End If
                End Select
            End If
        End Function
 
        Public Overloads Overrides Function ToString() As String
            Return [String].Format("{0}", Value)
        End Function
    End Class
 
    Public Enum ValueType
        ''' <summary>
        ''' Binary registry value type : convertit en byte[]
        ''' </summary>
        Binary
        ''' <summary>
        ''' DWORD registry value type : convertit en uint
        ''' </summary>
        DWORD
        ''' <summary>
        ''' QWORD registry value type : convertit en ulong
        ''' </summary>
        QWORD
        ''' <summary>
        ''' Expandable string registry value type : convertit en string
        ''' </summary>
        ExpandableString
        ''' <summary>
        ''' MultiString registry value type : convertit en string[]
        ''' </summary>
        MultiString
        ''' <summary>
        ''' String registry value type : convertit en string
        ''' </summary>
        [String]
    End Enum
 
    Public Module RegFileImporter
        Private Sub New()
        End Sub
        Public Function ProcessRegistryFile(ByVal input As StreamReader) As LocalRegistryKey
            Return ProcessRegistryFile(input, Nothing)
        End Function
 
        Public Function ProcessRegistryFile(ByVal input As StreamReader, ByVal result As LocalRegistryKey) As LocalRegistryKey
            If result Is Nothing Then
                result = LocalRegistryKey.CreateRepository()
            End If
 
            Dim last As LocalRegistryKey = Nothing
 
            Dim current_line As String = ""
            While Not input.EndOfStream
                current_line = input.ReadLine()
                If current_line.StartsWith("[") Then
                    ' section 
 
                    Dim [end] As Integer = current_line.IndexOf("]")
                    If [end] < 1 Then
                        Throw New InvalidDataException("Ligne invalide :" & current_line)
                    Else
                        Dim key_name As String = current_line.Substring(1, [end] - 1)
 
                        last = result.Key(key_name, True)
                    End If
                ElseIf current_line.StartsWith("@") Then
                    ' valeur par défaut 
 
                    ReadValue(current_line, input, last)
                ElseIf current_line.StartsWith("""") Then
                    ' valeur nommée 
 
                    ReadValue(current_line, input, last)
                End If
            End While
 
            Return result
        End Function
 
        Private Sub ReadValue(ByVal current_line As String, ByVal input As StreamReader, ByVal last As LocalRegistryKey)
            If [String].IsNullOrEmpty(current_line) Then
                Exit Sub
            Else
                Dim secs As String() = current_line.Split(New Char() {"="c}, 2)
                If secs.Length <> 2 Then
                    Throw New InvalidDataException("Ligne invalide :" & current_line)
                Else
                    Dim name As String = secs(0)
                    Dim data As String = secs(1)
 
                    If name = "@" Then
                        name = ""
                    Else
                        name = name.Substring(1, name.Length - 2)
                    End If
                    ' On retire les quotes 
 
                    If [String].IsNullOrEmpty(data) OrElse data = """""" Then
                        last.Values(name) = New LocalRegistryValue(ValueType.[String], Nothing)
                    Else
                        If data.StartsWith("hex:") Then
                            ' binary
                            last.Values(name) = New LocalRegistryValue(ValueType.Binary, DirectCast(ParseBinaryArray(data.Substring("hex:".Length), input), Byte()))
                        ElseIf data.StartsWith("dword:") Then
                            'dword
                            last.Values(name) = New LocalRegistryValue(ValueType.DWORD, CUInt(ParseDword(data.Substring("dword:".Length), input)))
                        ElseIf data.StartsWith("hex(b):") Then
                            'qword
                            ' Pourquoi le QWORD est-il stoqué sous la form de byte[] ?? 
 
                            Dim b_val As Byte() = ParseBinaryArray(data.Substring("hex(b):".Length), input)
                            Dim val As ULong = BitConverter.ToUInt64(b_val, 0)
                            last.Values(name) = New LocalRegistryValue(ValueType.QWORD, val)
                        ElseIf data.StartsWith("hex(2):") Then
                            ' expandable string
                            Dim str As String = ParseString(data.Substring("hex(2):".Length), input)
                            last.Values(name) = New LocalRegistryValue(ValueType.ExpandableString, Encoding.Unicode.GetString(BytesFromString(str)))
                        ElseIf data.StartsWith("hex(7):") Then
                            ' multi-string
                            Dim str As String = ParseString(data.Substring("hex(7):".Length), input)
                            last.Values(name) = New LocalRegistryValue(ValueType.MultiString, DirectCast(ParseMultiString(str), String()))
                        Else
                            ' string
                            last.Values(name) = New LocalRegistryValue(ValueType.[String], DirectCast(ArrangeString(ParseString(data.Substring(1, data.Length - 2), input)), String))
                        End If
                    End If
                End If
            End If
        End Sub
 
        Private Function ArrangeString(ByVal p As String) As String
            Dim res As String = ""
 
            Dim actual As Integer = 0
 
            Using reader As New StringReader(p)
                While True
                    actual = reader.Read()
                    If actual < 0 Then
                        Exit While
                    Else
                        Dim c As Char = CChar(actual)
                        If c = "\"c Then
                            ' échappement 
                            Dim escape As Integer = reader.Read()
                            If escape < 0 Then
                                Throw New InvalidDataException("Séquence d'échappement invalide : fin du flux rencontré pour la ligne : " & p)
                            Else
                                Dim e As Char = CChar(escape)
                                Select Case e
                                    Case "n"c
                                        If True Then
                                            res += vbLf
                                            Exit Select
                                        End If
                                    Case "r"c
                                        If True Then
                                            res += vbCr
                                            Exit Select
                                        End If
                                    Case "\"c
                                        If True Then
                                            res += "\"
                                            Exit Select
                                        End If
                                    Case "0"c
                                        If True Then
                                            res += vbNullChar
                                            Exit Select
                                        End If
                                    Case """"c
                                        If True Then
                                            res += """"
                                            Exit Select
                                        End If
                                    Case "'"c
                                        If True Then
                                            res += "'"
                                            Exit Select
                                        End If
                                    Case Else
                                        Throw New InvalidDataException([String].Format("Séquence d'échappement non reconnue, {0}, à la ligne {1}", c.ToString() + e.ToString(), p))
                                End Select
                            End If
                        Else
                            res += c.ToString()
                        End If
                    End If
                End While
            End Using
 
            Return res
        End Function
 
        Private Function ParseMultiString(ByVal str As String) As String()
            If [String].IsNullOrEmpty(str) Then
                Return New String(-1) {}
            Else
                str = Encoding.Unicode.GetString(BytesFromString(str))
 
                Return str.Split(New Char() {ControlChars.NullChar}, StringSplitOptions.RemoveEmptyEntries)
            End If
        End Function
 
        Private Function BytesFromString(ByVal p As String) As Byte()
            Dim parts As String() = p.Split(New Char() {","c}, StringSplitOptions.RemoveEmptyEntries)
            Dim res As Byte() = New Byte(parts.Length - 1) {}
 
            For i As Integer = 0 To parts.Length - 1
                res(i) = Byte.Parse(parts(i), System.Globalization.NumberStyles.HexNumber)
            Next
 
            Return res
        End Function
 
        Private Function ParseString(ByVal p As String, ByVal input As StreamReader) As String
            Return ReadFullString(p, input)
        End Function
 
        Private Function ParseDword(ByVal p As String, ByVal input As StreamReader) As UInteger
            Return UInteger.Parse(p, System.Globalization.NumberStyles.HexNumber)
        End Function
 
        Private Function ParseBinaryArray(ByVal p As String, ByVal input As StreamReader) As Byte()
            Return BytesFromString(ReadFullString(p, input))
        End Function
 
        Private Function ReadFullString(ByVal p As String, ByVal input As StreamReader) As String
            Dim s As String = ""
            Dim do_next As Boolean = False
            Do
                If p.EndsWith("\") Then
                    s += p.Substring(0, p.Length - 1)
 
 
                    do_next = True
                Else
                    s += p
                    do_next = False
                End If
 
                If do_next Then
                    p = input.ReadLine()
                    p = p.Substring(2)
                    ' 2 espaces au début de la ligne 
                End If
            Loop While do_next
 
            Return s
        End Function
    End Module
End Namespace

et

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Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs)
    Dim m As New OpenFileDialog()
    If m.ShowDialog() = DialogResult.OK Then
        Using fs As New FileStream(m.FileName, FileMode.Open, FileAccess.Read)
            Using rd As New StreamReader(fs, True)
                Dim ts = RegFileImporter.ProcessRegistryFile(rd)
                DumpTree(ts)
            End Using
        End Using
    End If
End Sub
 
Private Sub DumpTree(ByVal ts As LocalRegistryKey)
    Trace.WriteLine(ts.Name)
    If Not ts.GlobalRoot Then
        For Each item In ts.Values
            If item.Value.ValueType = DreamShield.Deployment.Utils.ValueType.Binary Then
                Trace.WriteLine(If([String].IsNullOrEmpty(item.Key), "(Default)", item.Key))
                Trace.Indent()
                Dim val As Byte() = DirectCast(item.Value.Value, Byte())
                For i As Integer = 0 To val.Length - 1
                    Trace.Write(val(i).ToString("X") & ",")
                Next
                Trace.WriteLine("")
                Trace.Unindent()
            ElseIf item.Value.ValueType = DreamShield.Deployment.Utils.ValueType.MultiString Then
                Trace.WriteLine(If([String].IsNullOrEmpty(item.Key), "(Default)", item.Key))
                Trace.Indent()
                Dim val As String() = DirectCast(item.Value.Value, String())
                For i As Integer = 0 To val.Length - 1
                    Trace.Write(val(i) & " | ")
                Next
                Trace.WriteLine("")
                Trace.Unindent()
            Else
                Trace.WriteLine([String].Format("-{0}:{1}", If([String].IsNullOrEmpty(item.Key), "(Default)", item.Key), item.Value))
            End If
        Next
    End If
 
    Trace.Indent()
    For Each item In ts.SubKeys
        DumpTree(item)
    Next
    Trace.Unindent()
End Sub