Hi, I downloaded a version of usb20cv.msi which was built for Windows XP (64 bit) and it was not installable. Error message to the effect that it wasn't applicable for this system. My computer is a Fujitsu laptop which used Windows Professional Tablet edition. Not sure if there is another version just for Tablet edition Windows XP or if for some reason I need to use the 32 bit version. (I run 64 bit linux OSes, so that doesn't seem reasonable. I will try to send a message to the folks at usb.org (didn't see an email address to use for questions, but may have missed it.) Steve Rinsler