dos and xp can't be done.to boot, both have to be on the primary disc and the first physical disc,but they can't cohabitate on the same partition. even if they could dos must stay under 2 gb which is hardly enough room for xp. thank you, scott nelles

DOS actually stands for DISK Operating System"" and as all O/Ses use some type of disk please can you state what the exact O/S you want help with ? and what exactly you need help with ??

If you want to concurrently run XP and DOS, I suggest you download a virtual machine emulator (Virtual PC, Virtual Box... all are free now) and install DOS inside the virtual environment. That is far better than set up a dual boot system, practice that may be harmful.

Well... they can both be on the same partition. And the size limit depends on the version. FAT16: 2GB; FAT32: 4TB. ===================================== If at first you don't succeed, you're about average. M2

I run them on different partitions. C: is FAT16, D: is NTFS. Install DOS first and then install XP on D. If you install them both on the same partition, XP will quickly grab all available space and leave DOS with nothing. Most packages install on the same drive as Windows. Even when they don't, 90% of their DLLs end up there.