Creating a batch file or executable file that will change drive le

Hi,
I need to create/find either a .bat file, or an executable file that will
allow me to change the drive letter of a CD drive on windows startup. I am
running WinXP SP2, and need the file to run only once each on about 150-200
systems (hence the reason I dont want to do it manually). I am using
Symantec Ghost to reload all systems to a standard, and can have a server
force the file to run on each one once, but I just need the commands if there
are any. OR, if anyone knows of any executable files that will allow the same
thing, that would be ust as good!

Thanks!
Tracy