I don't create any registry association during PSPad start. I check code and when I associate TXT (user request in Program settings). In this case I check (and if it doesn't exists) I create .txt (not .TXT) key.
Look for problem in Vista, not in PSPad or use some registry monitor to check your registry activity. -- <http://forum.pspad.com/read.php?2,49593,49597> PSPad freeware editor http://www.pspad.com
