## Return to Command Prompt or GP Fault in Module WIN87EM.DLL

Q114117

The information in this article applies to:

- Microsoft Word for Windows, versions 6.0, 6.0a, 6.0c
- Microsoft Windows 3.1

## SYMPTOMS

When you run Word for Windows under Windows version 3.1 on a 386-based computer with an Intel i387 math coprocessor, Windows may unexpectedly exit to the command prompt, or the following error message may occur:

> Winword Caused a General Protection Fault in module WIN87EM.DLL at 0001:0290.

## CAUSE

These errors occur because of a timing problem between the Windows WIN87EM.DLL file and some 80387 Intel math coprocessors. This problem does not happen if you are using the Intel 80486DX and 80486DX2 processors.

## STATUS

Microsoft has confirmed this to be a problem in the WIN87EM.DLL file supplied with Windows 3.1. This problem was corrected in an updated WIN87EM.DLL file, which you can obtain by online services.

Additional query words: 6.00a officeinterop gpf 80387 appnote gp word6 winword 6.00c fault

Keywords : kbinterop
Issue type :
Technology :

Last Reviewed: November 4, 2000 © 2001 Microsoft Corporation. All rights reserved. Terms of Use.