Dunno, but I'm running DOS 6.22 under VPC 2007 on XP HE,
despite M$ disavowall of support for DOS under VPC.

I've got old assemblers, compilers, and device programmers
which run under DOS or W3 - So far everything I've tried works.

Re-remembering how to configure DOS was the hard part. I also
lucked out in that my 15-year-old DOS install disks still work.
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist