the message I receive is---windows does not know what to do with this file and wants me to go to the web for help . All I get there is an app to check the registry . My desktop is an imac running parallels with installed win xp and win 7 as virtual machines . I also use a mac book pro running parallels with win xp as a virtual machine . Also i still have my original comp. , which is still operating with win-me and that one gives me the same story . Dick Bergin