seaburg@uiucdcs.UUCP (08/25/84)
#R:sri-arpa:-1242700:uiucdcs:24700057:000:295 uiucdcs!seaburg Aug 25 10:57:00 1984 The DOS calling within DOS screws up because of stack overflows. If I remember correctly, you can do disk I/O type stuff while in DOS character I/O space and vice-versa. You can't do char I/O while in DOS char I/O and same for disk I/O. Hope this helps. Gunnar Seaburg (supplemental IBMer)