IDK, I d/l’d it and it works in XP Home. This thread got me looking through a bunch of backed up stuff, and I found the one I used to use. It’s called Enc Spot. Like I said, there seems to be lots of them and it depends on what you are checking for. Enc Spot, for example, will tell you if the final frame is complete and also make a pretty good guess as to the encoder used.