"Set tvdumpflags=" is probably loading from a line in autoexec.bat.
Does this system have ZoneAlarm installed on it?
In any case, at the C prompt, Type "edit c:\autoexec.bat" or "edit \autoexec.bat" (no qoutes) and hit enter.
Look for the corresponding line and delete it, save, exit and restart the system.
You will have no mouse functions so it's all keyboarding in here.
You'll also need to re-install what ever application was using that command line, which is probably damaged anyway.
While you're in there, the very first line at the top should read "@echo=off". If it doesn't, change it or add it in to get rid of those multiple C:>'s you're seeing.
Edited by HitSquad, 08 April 2006 - 07:10 AM.