obj_base.h is not needed anymore. Using <objbase.h> instead.
Use Xwindows.h instead of windows.h
do not include win_ms.h
remove extra definition of sleep()
Set HOME to Documents and Settings/username if not set
Use Xming basedir instead of ProjectRoot for system.XWinrc
Fix callback functions to use wBOOL instead of BOOL
Fix compiler warnings. Added debug output.
Fix warning about undefined macro max
