I tried the removal download referred to in http://www.renderosity.com/messages.ez?ForumID=12440&Form.ShowMessage=989060 post 13 - didn't give me the option to uninstall anything when i ran it - just installed interlock. When i looked , I found it listed in "Add/Remove Programs" and ran an uninstall from there. then I ran the Regedit/find for references, and found 18 or 20 references still in my registry - about 1/2 allowed me to delete them, the others were no go.