How can I force .NET to use a local copy of an assembly that's in the GAC

Question

I have a .NET assembly that (for reasons outside my control) must be in the GAC. However, the same assembly is used by another program, which has a its own copy of

Answer 1

If they have the same version number the answer is you can't. If you attempt to load an assembly that has the same full assembly name (name, version, key) as a GAC'd assembly the CLR will pick the GAC'd assembly every single time.