reg add HKCU\Software\Classes\CLSID\{86CA1AA0-34AA-4E8B-A509-50C905BAE2A2}\InProcServer32 /ve /t REG_SZ /d "" /f
(Note: The original missing backslashes, braces {} , and the /ve flag location suggest a misunderstanding of the syntax.)
reg add "HKCU\Software\Classes\CLSID\{86CA1AA0-34AA-4E8B-A509-50C905BAE2A2}\InProcServer32" /ve /t REG_SZ /d "" /f If you instead wish to register a functional DLL:
Always treat registry modifications with respect – a single mistyped GUID or an errant /f flag can break application functionality. But when used correctly, reg add is one of the most powerful commands in a Windows administrator’s arsenal.