Seems that you have accidentaly deleted some of the files needed or
that comprised parts of your vegas project,thats why thats happening.
As Laszlo said “Virtualdub itself doesn’t need to be installed, it just runs from the directory you copy it to, and it surely does not hurt Vegas in any way.” so its puzzling that you got that
message about cannot delete from registry….you where deleting something else!
See if you have a restore point available before the problems
started or before you started deleting files…and restore to
then.
Steve Rhoden
Creative Director
TNX EFFECTS STUDIOS.
sample bits at
http://www.youtube.com/hentys