Library design practices that work while doing development in Microsoft .net technologies

Question

I was looking for a book or msdn article for developing a framework/library which extends the .net framework like here. Where can I find good design guidelines?

Answer 1

The almost-canonical one is "Design Guidelines for Developing Class Libraries", which is pretty much the online version of this book. There's a lot of good information in there.

Answer 2

Good book on framework design in .Net:

http://www.amazon.com/Framework-Design-Guidelines-Conventions-Libraries/dp/0321545613