ActiveX Control and COM Add-in Compatibility
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Existing 32-bit ActiveX controls, both third-party and Microsoft-supplied, are not compatible with the 64-bit version of Office 2010. For ActiveX controls and COM objects, there are three possible solutions:
•If you have the source code, you can generate a 64-bit version yourself,
•You can contact the vendor for an updated version,
•You can search for an alternative solution.
Native 64-bit processes in Office 2010 cannot load 32-bit binaries. This includes the common controls of MSComCtl (TabStrip, Toolbar, StatusBar, ProgressBar, TreeView, ListViews, ImageList, Slider, ImageComboBox) and the controls of MSComCt2 (Animation, UpDown, MonthView, DateTimePicker, FlatScrollBar).These controls were installed by previous versions of Microsoft Office and are installed by 32-bit Office 2010. An alternative must be found for existing Microsoft Office VBA solutions that utilize these controls when the code is migrated to 64-bit Office 2010. 64-bit Office 2010 does not provide 64-bit versions of the Common Controls
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