Run 32 bit .NET applications on 64 bit machines
March 15, 2010 6 Comments
If you have a 64 bit machine and want to run a .NET application that only works with the 32 bit CLR you would have to make changes to the .NET framework on your machine
Set the .NET framework to load the CLR in WOW mode through this command
Open up command prompt and type this command
C:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727\Ldr64.exe SetWow
Now you should be able to run apps that use only the .NET 32 bit CLR.
To revert back to the default 64 bit framework run
C:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727\Ldr64.exe Set64
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Alternatively, compile the executable for x86 instead of any CPU.
If you can’t recompile, the CorFlags utility will modify the executable for you:
“c:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\x64\CorFlags.exe” MyApplication.exe /32bit+
Thanx!!
It really helped me a lot!!!!
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Would these commands work with a .NET dll or .NET COM dll. I am trying to invoke a .NET COM dll and it seems to be defaulting to the 64 bit framework when it was compiled to be x86.
Raymond,
The application that I was trying to run had .NET dlls and this worked. I am not sure if this works with the .NET COM Dlls