I was trying to help Klownin79 flash his BIOS on an XP system. I know XP doesn't have DOS, so I reccomended he go to bootdisk.com, and download their DOS flash disk. He was still having problems with "invalid system disk", so I tried it myself, and I found out that the Dr.DOS disc is an executable, if you load it directly to the floppy, it doesn't work. Click on it, it writes the files to your floppy, and it works, or at least it did in my machine. I thought I had the problem solved, but he said his machine gave him "format not supported". What has been your experience with XP and BIOS flashing?