UltraEdit, UltraCompare, UEStudio forums

Well, after searching on the web I found this program that solved my problem: http://windowsxp.mvps.org/openwithadd.htm

Sounds extremly strange. Something is really corrupted on your machine. This seems like a rather disingenuous (and scary!) response. Perhaps the problem is ultraedit's (lack of clean uninstall or install bug) & not a corrupt machine? Anyway, I've got the same problem. I wanted to update from v11 to...