Hi conf,
"How to create a B4ppc library?" should be the second question. The first is "How to develop .NET apps?" and especially "How to develop .NET apps with sharpdevelop?". If you manage to answer the first question and be an experienced .net developer, then you are ready to start looking for answers to your question, the second question in my opinion, and this forum could be useful in that.
Start searching the internet or buy a good book.
A good free start
http://community.sharpdevelop.net/bl...atureTour.aspx
I hope I helped with respect to your concerns.
Regards