What if you don't have DOS? Ala WinME? No rebooting to DOS there just a DOS window, but windows is still running. Then again you could use a boot disk or something. But you should be able to flash from a DOS window just fine, long as there isn't any junk running in the backround that would crash windows while you're doin it. If you ask me, it should be a priority to get windows running as stable as possible anyway. And yes it can be stable. (well relatively hehe)