Edit: If you have the debug and the release folder this may not work on the debug folder dll. It didn’t work for me.

We’ve got a 3rd party DLL that we use (not strong named) and I wanted to add it to the GAC. Alas! Only strong named assemblies are allowed in the GAC.

I’ve been trying figure this out for almost a week… couldn’t find much help on Google , so I thought I’d share.

Well, here is my solution (it works… not sure if it’s the best way though)

From a VS.NET command prompt, enter the following:

1. Generate a KeyFile

sn -k keyPair.snk

2. Obtain the MSIL for the provided assembly

ildasm providedAssembly.dll /out:providedAssembly.il

3. Rename/move the original assembly

ren providedAssembly.dll providedAssembly.dll.orig

4. Create a new assembly from the MSIL output and your assembly KeyFile

ilasm providedAssembly.il /dll /key= keyPair.snk

Viola!

You now have a strong named assembly.

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