KB887818 : “Cannot copy assembly”...
I am really fed up with this error in VisualStudio. Luckily I am not the only one experiencing this problem.
Frans Bouma as an ISV is also pretty anoyed that the fix can't be downloaded directly. Well I always forget to put the hotfix on my usb memory key and have to call (again...) to get this hotfix.
Here is the knowledge base article for those that need some extra information:
FIX: You receive the “Cannot copy assembly” message when you build a c# solution in VS.NET2003