Q61238: C 6.00 README: 43-Line Mode with DOS 4.01 ANSI.SYS

Article: Q61238
Product(s): See article
Version(s): 6.00   | 6.00
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 24-JAN-1991

The following information is taken from the C version 6.00 README.DOC
file.

43-Line Mode with DOS 4.01 ANSI.SYS
-----------------------------------

You may experience problems trying to switch CodeView or the
Programmer's WorkBench (PWB) to 43-line mode if you are using DOS 4.01
and ANSI.SYS.

To use Codeview or PWB in 43-line mode in this situation, switch to
43-line mode using the MODE command (MODE CO80,43) before you invoke
the program.

This problem also affects the graphics functions _settextrows and
_setvideomoderows. Under DOS 4.01 with ANSI.SYS installed, using these
functions to set 43-line mode may cause unexpected behavior.

At the moment, the only known solution is to remove ANSI.SYS from your
CONFIG.SYS file and reboot your machine.