Microsoft KB Archive/34761

= Regarding the Use of Undocumented MS-DOS Features =

Article ID: 34761

Article Last Modified on 11/16/2006

-

APPLIES TO


 * Microsoft MS-DOS 2.11 Standard Edition
 * Microsoft MS-DOS 3.1
 * Microsoft MS-DOS 3.2 Standard Edition
 * Microsoft MS-DOS 3.21 Standard Edition
 * Microsoft MS-DOS 3.3 Standard Edition
 * Microsoft MS-DOS 3.3a
 * Microsoft MS-DOS 4.0 Standard Edition
 * Microsoft MS-DOS 5.0 Standard Edition
 * Microsoft MS-DOS 5.0a
 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.21 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

-



This article was previously published under Q34761



SUMMARY
Microsoft does not give out any information about undocumented system features. If calls, flags, or interrupts are undocumented, it is because they are not supported; we can give NO guarantee that they will exist in future releases of MS-DOS. If you find out about these features (through articles or by chance) and begin using them in your programs, there is a real potential that your application will not work in future MS-DOS versions.

We strongly advise against using undocumented features for these reasons and will give out no information about their use.

Additional query words: 6.22 4.00 4.01 4.01a 5.00 5.00a 6.00 6.20

Keywords: KB34761

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.