I would be so happy if the uninstaller would make a backup of, or just not delete, changed files in the dataflex program files folder. In particular I've got, ONLY on my Dev machine, maybe 10 different connection ID's set up, in mssqldrv.int. It's a pain to remember to back thiese things up,and to get administrator mode (since the rules changed and we don't run the Studio as administrator any more)