COOKIE *cookiejar = (COOKIE *)Setexc(0x5A0/4, (void (*)())-1); WORD boot_device = (WORD)Setexc(0x446/4, (void (*)())-1); WORD number_of_floppies = (WORD)Setexc(0x4A6/4, (void (*)())-1); These are all system variables accessible by Setexc() and usefull for applications. Bye, Rainer