I'm less than clear on what you wrote: presumably this refers to a different -- or second -- VPC emulation module ? (I was not aware that one existed for Win 3.1, in that event.) Otherwise, you would be talking about some sort of dual boot ? Probably not the latter, as my experiments with having 32-bit Win-7 and XP peacefully coexist in a dual-booting scenario have been plagued by severe problems, and I'm starting to think that setup is not worth the trouble. Jordan --- On Fri, 7/27/12, Kari Eveli <lexitec@xxxxxxxxxxx> wrote: > The best way of getting great DOS windows is to install > Windows 3.1 and to use Windows 3.1 DOS boxes. They are the > most compatible DOS boxes I have seen, and performance is > better under Windows 3.1 DOS boxes than under plain VPC DOS. > For example, when I run a data-intensive Clipper application > under a DOS box the run time is cut in half. >