Don't give up your XT until all of your software will run else where. If separate machines are undesirable, I am happy with kvm switching.
Hopefully, some one will come up with a vm that will really work with Win7.
Win7 is good at what it does, but it requires that you learn to read & write its language and to out flank the really weird stuff. I am still unsure if I really stored a file in the folder I meant to. Sometimes Drag & Dropping just loses the load! Windows explorer is a poor representation of how data is really stored in the machine...
Win7 still has a lot of mysteries for me. If you are thinking about installing your old XP on new hardware you suddenly discover the drivers don't match the hardware.
However, the longer you wait, the harder the move will be.
I still have a couple of XT's so I am not missing Reg's programs but I do miss Reg Edwards! John Ferrell W8CCW