It seems like I have to mess with this every few months after a few Windows updates but always end up getting it working. I'm glad I got one of these when I did as all of these flash carts end up being impossible to find. I traded a bunch of stuff (too much) for a VecMulti but it is not as easy to use for development.
I'm also looking to buy a 7800 cart and new burner from Mateos. Hopefully he pops up soon.