>>I have a solution with two projects: NSPLogic and NSPWindows. NSPLogic is simply a collection of public classes that are used for business logic. I registered NSPLogic in NSPWindows references, but my forms don't see the classes. I put a using statement--using NSPLogic, but that throws an error when I try to run the project in debug mode. What am I doing wrong?
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>The using statement needs to specify the entire namespace, and I'm betting that the namespace of the classes in your NSPLogic project is not simply "NSPLogic".
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>~~Bonnie

Nope. That wasn't it. Both projects have the same namespace. Could that be the problem?