You may have a look at the SetupUninstallOEMInf function (Windows)[^]. It can be used to check if a specified INF file is installed and to remove it.

Ok Thanks!

This would be better placed in the C / C++ / MFC forum[^]. There is no class wizard support because the CFolderPickerDialog is based on Windows common dialogs which are handled a little bit different. So you must derive your class manually. To get help with your problem you should post the relevant source code parts.