16-Bit Windows Environment Stops Responding (Hangs)
Article ID: 101266
Article Last Modified on 11/1/2006
APPLIES TO
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
This article was previously published under Q101266
SYMPTOMS
After a 16-bit Windows-based application generates an exception error and
hangs, the rest of the Windows NT operating system also appears to hang.
The mouse and keyboard both seem to be disabled.
CAUSE
Normally, the 16-bit Windows environment is protected, running in its own
virtual MS-DOS machine (VDM). However, in some cases a 16-bit Windows-based
application can appear to hang Windows NT. This can be caused by an
application that has enabled journal hooks (a method of recording or
monitoring keystrokes and mouse movements). If the application is
monitoring journal hooks and then hangs, since the mouse and keyboard are
being actively polled by a hung process, they appear to be disabled.
RESOLUTION
Pressing CTRL+ESC to bring up Task Manager disables journal hooks, frees
the mouse and keyboard, and enables you to close the application that
caused the problem.
Additional query words: prodnt
Keywords: kbother KB101266