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Technology Stocks : How high will Microsoft fly?
MSFT 489.89+0.6%2:30 PM EST

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To: cheryl williamson who wrote (8294)6/4/1998 2:19:00 PM
From: mozek  Read Replies (2) of 74651
 
Thanks for the response Cheryl.

Check with your CT @MSFT, there were a number of "undocumented
features" to MS-DOS that were not divulged to the public in an
official form until MSFT published the MS-DOS spec, after it
had outlived its usefulness I might add, for $130. They can be
found in "DOS Programmer's Reference 2nd Edition" by Terry
Dettman & Jim Kyle published by Que Corporation.


I'm well aware of this book. I got a copy of it when it first came out. I also reverse engineered many undocumented features of DOS before they were ever published. Since I exploited them for TSRs and a mutlitasking system, I learned ways of adapting my commercial programs to the nature of undocumented APIs, changing from version to version in function and spec. At the time, I didn't work for Microsoft, but it made sense to me that these would be undocumented. They were by their nature too wired into a specific OS version's architecture and not very useful for applications.

My question still remains. Do you know of any specific API that was exploited by a Microsoft application to the detriment of any third party application? In my years of systems development both outside and inside of Microsoft, I have heard this complaint many times, but I have yet to learn of any specific example.

Thanks,
Mike
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