any good and simple RPC library for inter-process calls? [closed]

Answer 1

If you only need to support Windows I'd use the Windows built-in RPC, I've written two introductory articles about this:

http://www.codeproject.com/KB/IP/rpcintro1.aspx
http://www.codeproject.com/KB/IP/rpcintro2.aspx

You could use the ncalrpc protocol if you only need local inter-process communication.