It isn't really like expecting a 2.4 Ghz system to work on 27Mhz. Windows is Windows and I (and most other PC users) have been led to believe it is compatible.
I began with DOS and having sorted that all out after great effort, they introduced Windows, but made it clear that neither were compatible and everything learned about DOS would have to be forgotten. I then laboriously learned about Windows 3.1. Windows 98 then turned up and I found it a great improvement. Then came Wimdows 98 and again, it was different, but better and all my software funtioned. Next came XP and that suited me admirably and I could find no fault with it. Not content with that, they brought in Vista and again ALL my old software worked with it, but I did not feel it was quite as good as XP (just personal view), but was happy with it neverheless. Then the much-vaunted Windows 7 came in with never a suggestion that some of my old software wouldn't work. I found it very disappointing. Althouth I prefer Microsfot Word, there are still some features that I prefer on Corel WP, but Windows 7 doesn't like the Corel either and although I can Word Process on it and even print it, it will not save documents at all!
Bob