Bad Results Using 43-Line Mode in MS-DOS 4.01 with ANSI.SYS (76740)


The information in this article applies to:

  • Microsoft QuickBASIC 4.5, when used with:
    • the operating system: MS-DOS
  • Microsoft Basic Professional Development System (PDS) for MS-DOS and MS OS/2 7.0
  • Microsoft Basic Professional Development System (PDS) for MS-DOS and MS OS/2 7.1
This article was previously published under Q76740

SUMMARY

If you use the Basic WIDTH statement to change your display to 43-line text mode and you have the ANSI.SYS device driver from MS-DOS version 4.0 or 4.01 loaded, strange and/or garbled output can occur. This is a result of problems with the ANSI.SYS driver from MS-DOS 4.0 and 4.01, and does not occur with ANSI.SYS from other versions of MS-DOS.

This information applies to Microsoft QuickBasic version 4.5 for MS-DOS and to Microsoft Basic Professional Development System (PDS) versions 7.0 and 7.1 for MS-DOS and MS OS/2.

MORE INFORMATION

One customer reported that with the above configuration, he was not able to print on lines 1-3. Another customer reported that with this configuration, the video displayed random colors and characters until a key was pressed. This problem occurs with the WIDTH 80,43 or WIDTH 40,43 command.

The problem can be avoided by not loading ANSI.SYS or by using a different version of MS-DOS.
Modification Type:MinorLast Reviewed:1/8/2003
Keywords:KB76740
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