For background information, please read my blog on Assembly Identity

Assembly Identity --- ReferenceIdentity and DefinitionIdentity, Comparison and Transformation
http://blogs.msdn.com/junfeng/archive/2005/04/05/405436.aspx

As we learn from the article, there are three types of assembly identity comparison: Ref-Ref,  Def-Def, and Ref-Def.

Ref-Ref and Def-Def is pretty straightforward. You basically compare all the attributes.

Ref-Def comparison is a little bit complicated, especially given in CLR we don't compare the version number for non-strongly named assemblies.

Thus we invented this API AssemblyName.ReferenceMatchesDefinition for your disposal.