QUOTE (Cat-a-strobe-ic Dj @ Feb 10 2010, 06:23 PM)

I had installed TS and FS properly from the CD but I also installed The first decade.
!!
Installing the TFD version of TS has overwritten the registry for your original TS/FS installation. And uninstalling the TFD version then deleted the registry for TS/FS.
So, either reinstall (recommended) or create the "HKEY_LOCAL_MACHINE\SOFTWARE\Westwood\Tiberian Sun\InstallPath" registry entry and make it point to your original TS/FS installation folder using Windows Regedit.
Or just ignore the error, if it doesn't bother you.
It's never recommended to install a different version of
any game while an other version is present on the computer unless you know what it causes and how to fix/revert any possible configuration errors. Applies not only to C&Cs but also to other games.
This post has been edited by ^Rampastein: Feb 10 2010, 08:27 PM