Ive installed some games on an extenal hard drive, (comand and conquer generals and zero hour) to save space on my general hard drive, which proved to be a problem when i installed a new dvd drive, the external hard drive letter chaned from E to F, now I can;t play the games, nor can I uninstall them, I get the error message "1324. The path Program Files contains an invalid character." I havn't renamed that file (that would be stupid) and no other installations have this problem so I assuming this has to do the my E drive changing to F, can anyone firts of all help me uninstall this program so I can install it correctly.

You could just change the drive letter back to what it was in Control Panel --> Administrative Tools --> Computer Management --> Disk Management.

that did it, I never knew how to change the drive number or I would have tried that, Cheers mate. Thank you!

No problem