How to do RegAsm so that it cover 32-bit and 64-bit?

c# windows com regasm regedit
user285594 picture user285594 · Jun 27, 2014 · Viewed 16.4k times · Source

I have a DLL file prepared by C# and my system is Windows 7 64-bit. When i apply the RegAsm its not adding the registry to 64-bit path but only adding it to 32-bit path.

"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe" /register /codebase "C:\o.dll"

then if i check my GUID in regedit.exe i see that i have it only in 32-bit registry path: HKEY_CLASSES_ROOT\CLSID\{... my guid is found here ....}

instead of HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{... not found my guid ...}

As a result i have other issues for this. Can anyone please suggest what is going on and why its not making 32-bit and 64-bit registry entries?"

Answer

cynic picture cynic · Jun 27, 2014

You have it backwards. The Wow6432Node is where the 32-bit specific data goes. Use the 32-bit regasm (from the Framework directory, not the Framework64 directory) to have your component registered in the Wow6432Node.

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