You receive an access violation error message after you press the power button on a Windows XP-based computer (900903)
The information in this article applies to:
- Microsoft Windows XP Media Center Edition
- Microsoft Windows XP Home Edition
- Microsoft Windows XP Professional
- Microsoft Windows XP Tablet PC Edition
SYMPTOMSConsider the following scenario:
- You click Ask me what to do in the When I press the power button on my computer box. The When I press the power button on my computer box
is located on the Advanced tab in Power Options Properties.
- A custom Graphical Identification and Authentication (GINA)
.dll file is currently registered and loaded.
- All users are logged off.
After you press the power button on the Windows XP-based computer, you receive an access
violation error message. CAUSEThis problem occurs because Winlogon.exe does not correctly
handle the Advanced Configuration and Power Interface (ACPI) power button event
if a custom GINA is currently registered and loaded. Winlogon.exe always handles the ACPI power button event
through the functions that are exported by the default Msgina.dll file. However,
the Msgina.dll file is not used if a custom GINA file is used. Therefore, the
access violation occurs when Winlogon.exe tries to call a function pointer that
should be mapped to a function that is exported only by the Msgina.dll file.
WORKAROUNDTo work around this problem, do not click Ask me what to do in the When I press the power button on my computer box if you are using a custom GINA.STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
| Modification Type: | Major | Last Reviewed: | 7/5/2005 |
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| Keywords: | kbtshoot kbprb KB900903 kbAudEndUser |
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