Wow, I didn't know anyone was still using that. Good to hear that it's still working.
Lately, I've been working on the software that I plan to use in my next car computer. It'll be version 3 of my VCC program. The configuration program and the VDIP support have been written. The TSR still needs some more work, though. Mainly it's a matter of fixing bugs. I might add Car2PC support too. Still debating that one.
I'm definitely going to keep using DOS and MPXPlay. They work so well, I have no reason to switch to anything else.