01NOV85-- The file MSVER1.O can be used to BIND your programs for use with DOS 1.X. To use, either: BIND , ... MSVERS1 [options] or REN CSTDIO.S CSTDIO.O LIB88 MSVERS1 CSTDIO -oCSTDIO DEL CSTDIO.O The later method will install the DOS 1.X support in CSTDIO.S. The .EXE files on the distribution disk will work with either DOS 1, 2, or 3.X