Microsoft KB Archive/64478

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Mathematica 387 and Mathlab 386 with Windows 3.0

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Q64478

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The information in this article applies to:


 * Microsoft Windows versions 3.0, 3.0a

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SUMMARY
Mathematica 387 and Mathlab 386 do not run properly in Microsoft Windows version 3.0 protected modes (standard and enhanced). These programs use the VCPI (virtual control program interface) to access extended memory that conflicts with Windows in protected mode (standard and enhanced).

MORE INFORMATION
The VCPI specification allows MS-DOS applications to directly access extended memory on 80386 machines. Windows uses the DPMI (DOS protected mode interface) specification. The DPMI specification allows MS-DOS applications to directly access memory on 80286 and 80386 machines. Many programs that use the VCPI specification, including Lotus 123 version 3.0, run correctly in standard mode Windows. The performance of an MS-DOS application that uses the VCPI specification depends on how closely the actual application follows the VCPI specification.

The products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: 3.00 3.0 3.0a 3.00a 3rdparty win30

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Technology : kbWin3xSearch kbWin300 kbWin300a