Greetings, I have a 32 bit COM dll that is used to write out a file to the hard drive using FSO. I found that manually registering it using RegSvr32 without elvated priveleges results in the calling application not being able to load the DLL (I believe the UAC is causing this). On a Windows 7 32 bit system and using RegSvr32 through the command prompt with elevated priveleges I was able to successfully register the DLL and the calling application was able to load it. However, following the same steps on a Windows 7 64 bit machine it did not work? Is there anything special that needs to be done on a Windows 64 bit machine to register a 32 bit COM DLL so the UAC will it to load when called from an application? Thanks Lou Davis

Hi Lou_Davis, Thanks for the post! What's the error message you got when you fail to load the DLL? Please note that, on a 64-bit Windows operating system, there are two versions of RegSvr32. The 64-bit version is %systemroot%\System32\regsvr32.exe The 32-bit version is %systemroot%\SysWoW64\regsvr32.exe Ensure you're using the right one. Regards, Miya This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.