Can I sign an assembly for which I do not have source code?

Question

I have received an assembly from a third party. I need to add it to the GAC, but it does not have a strong name. Is there any way for me to sign the assembly using my own key so

Answer 1

Yes, this is possible. However, the solution is not straightforward. You will find instructions on signing third-party assemblies in .NET-fu: Signing an Unsigned Assembly (Without Delay Signing).