Microsoft KB Archive/34761

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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