COM CLSID CodeBase key

Question

When .net assemblies are registered for COM Interop, there is a CodeBase key in the registry that points to the executable.

My question is: is the CodeBase key something specific to .NET, or is this a generic COM thing that all registered components are expected to have?

Answer 1

According to http://msdn.microsoft.com/en-us/library/tzat5yw6%28v=VS.100%29.aspx the CodeBase key is only relevant for .NET assemblies not present in the GAC.