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Q34761: Regarding the Use of Undocumented MS-DOS Features

Article: Q34761
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:2.x,3.x,4.x,5.0,5.0a,6.0,6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 2.11, 3.1, 3.2, 3.21, 3.3, 3.3a, 4.0, 4.0a, 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 
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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

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Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS321 kbMSDOS400 kbMSDOS320 kbMSDOS330a kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS310 kbMSDOS500 kbMSDOS330 kbMSDOS500a kbMSDOS211
Version           : MS-DOS:2.x,3.x,4.x,5.0,5.0a,6.0,6.2,6.21,6.22

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