I understand your frustration at this but all the yelling is very rediculous... Most (if not all) of your errors are not caused by WPI. you need 3 files at the root of your cd win51, win51ic and win51ic.sp2. How did you get the installation to finish when it asked for the cd or was this during windows running? Also you seem to have used the RVMi to add WPI addons (Thats ok BTW) but are you positive your working on a clean valid source everytime?