Resource HackerTM is a freeware utility to view, modify, rename, add, delete and extract resources in 32bit Windows executables and resource files (*.res). It incorporates an internal resource script compiler and decompiler and works on Win95, Win98, WinME, WinNT, Win2000 and WinXP operating systems.
http://www.users.on.net/johnson/resourcehacker/
para ver el codigo de fuente de un programa creeria que es imposible.