New Emm386.exe Fixes Problem Receiving NMI in Protected Mode
Article ID: 137870
Article Last Modified on 11/15/2006
APPLIES TO
This article was previously published under Q137870
SYMPTOMS
A real-mode nonmaskable interrupt (NMI) handler does not receive an NMI if
it is generated in protected mode. The real-mode NMI handler does receive
the NMI if it is generated in real mode.
CAUSE
This problem occurs when Emm386.exe is loaded in protected mode, because
the virtual machine (VM) flag does not get set during the process of
creating the stack frame to go from protected mode to real mode.
RESOLUTION
STATUS
This problem no longer occurs in Windows 98. To resolve this problem, install the current version of Windows. For information about the current version of Windows, visit
http://www.microsoft.com/windows.
Keywords: kbprb KB137870