Strongly-named Interop Assemblies - the final word?
This comment just saved my life!
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By: Jerry Dennany 
Url: http://weblogs.asp.net/jdennany 
Body: 
Actually, you can fix this straight from the VS.NET IDE.  In the Solutions Explorer, right click on the Project name and select "Properties".  In the "Properties" window, go to "Common Properties" --> "General".  Here you'll see a setting called "Wrapper Assembly Key File".  Place the path to your keyfile here.  Now the IDE will sign COM Interop assemblies properly.