Floating-Point Calculations in Windows Using WIN87EM.DLL (70758)
The information in this article applies to:
- Microsoft Windows 3.0
- Microsoft Windows 3.0a
This article was previously published under Q70758 SUMMARY
WIN87EM.DLL is a dynamic link library (DLL) that supplies floating-point
calculation routines for Windows applications that support math
coprocessors. Windows by itself does not use WIN87EM.DLL, but some Windows
applications that carry out floating-point calculations require WIN87EM.DLL
to be present in the Windows\SYSTEM subdirectory.
For example, Microsoft Excel version 3.0 requires WIN87EM.DLL to be
present whether or not your computer has a math coprocessor chip. If
WIN87EM.DLL is not present, Excel generates the error message:
Cannot find Win87em.dll" and will not load
If WIN87EM.DLL is damaged, Excel 3.0 attempts to run a second instance
of Windows, leaving you in real mode with the error message:
Cannot run this application in real mode
Other Windows applications may require WIN87EM.DLL and may display
similar behavior.
REFERENCES
"Microsoft Windows Guide to Programming," Microsoft Press, section
14.5.7.
Modification Type: | Minor | Last Reviewed: | 7/7/2005 |
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Keywords: | KB70758 |
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