already installed pgms wont work after moving ur Program files to another drive, since they will not be no longer maped to register values.......the change of "Program files" folder must be done right after the installation of the OS.
@gopi_vbboy
some people like to keep their installed softwares in a dedicated drive on the harddisk....they may be interested in these registry editing man...trying to play around my Windows is fun, just like my linux box...