are you sure you can't do DJGPP with windopws 7's XP Mode? I was assured you do do this in XP Mode (but I am unsure).
doing DJGPP is critical for me as I do DOS development with a number of apps, including some bootable cd's and DVD's that run FreeDOS, all with apps I write using DJGPP.
If there's a better DOS cross-compiler out there that runs under windows 7, please let me know about it.
If you have a windows 7 64-bit machine, I have a test app I would like you to run that is written in DJGPP which you can unzip and run to test windows XP Mode.
Phone (Autoit3,C,dos,win) - phone letters to digits
1.unzip it in your XP Mode filesystem.
2.start a cmd shell (start, type in cmd [Enter] or [windows-logo-flag-key]-R cmd [Enter])
3.cd \directory\Where\phone\is
4. cd dos
5. phone blop OR phone 1-800-NetZero
let me know if you get an error from the OS saying it won't run in XP Mode. it uses DPMI for memory access, so it should be just fine.
it converts phone letters to phone digits. (yes, there is a windows GUI app too - great if you have a smartphone with a keyboard that isn't a 10-key)
If this runs on a 64-bit windows 7 machine, it means I can get a 64-bit machine and a much needed 24GB of ram for working with panoramas. I do more than just programming.