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The Old New Thing: Practical Development Throughout the Evolution of Windows by Raymond Chen

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How to Ensure that Your Program Does Not Run Under windows 95

MY PRIMARY FOCUS for much of the Windows 95 project was MS-DOS application compatibility, specifically games. To help maintain my sanity, I found myself writing the following account, illustrating the phenomenal creativity of software developers in doing everything within their power to be incompatible with Windows 95.

This chapter is a very technical one, originally written for an audience consisting of developers deeply steeped in the minutiae of protected-mode programming. I have attempted to clarify the jargon, but the issue is unavoidably technical. Here are some terms you will encounter:

• The Global Descriptor Table (GDT) is a central data structure that is used by the CPU and ...

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