dumpbin & P/Invoke
Chris Tacke has an excellent article on MSDN about using dumpbin.exe as an aid to .NET CF developers (particularly focused) in declaring P/Invokes. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/netcfdumpbinpinvoke.asp I don't know anyone who has done NETCF development (including myself) that hasn't had to P/Invoke at some point...
-Nino