Article ID: 955688 - Last Review: September 10, 2008 - Revision: 1.0
The UpdateLayeredWindowIndirect function does not correctly display a layered window when the prcDirty parameter is specified and when the DWM feature is enabled in Windows Vista and in Windows Server 2008
You develop an application that uses the UpdateLayeredWindowIndirect function to update a layered window. However, when you run
the application in Windows Vista or in Windows Server 2008, the function does not correctly display the layered window.
This issue occurs when the following conditions are true:
In the UPDATELAYEREDWINDOWINFO structure, you use both the pptSrc parameter and the prcDirty
parameter.
The pptSrc parameter does not use the default value (0,
0).
The Desktop Window Manager (DWM) feature is
enabled.
Additionally,
when the issue occurs, you cannot manipulate the parameters to output the
correct result.
A
supported hotfix is available from Microsoft. However, this hotfix is intended
to correct only the problem that is described in this article. Apply this
hotfix only to systems that are experiencing this specific problem. This hotfix
might receive additional testing. Therefore, if you are not severely affected
by this problem, we recommend that you wait for the next software update that
contains this hotfix.
If the hotfix is available for download, there
is a "Hotfix download available" section at the top of this Knowledge Base
article. If this section does not appear, contact Microsoft Customer Service
and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required,
you might have to create a separate service request. The usual support costs
will apply to additional support questions and issues that do not qualify for
this specific hotfix. For a complete list of Microsoft Customer Service and
Support telephone numbers or to create a separate service request, visit the
following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for
which the hotfix is available. If you do not see your language, it is because a
hotfix is not available for that language.
Prerequisites
To apply this hotfix, the computer must be running one of the following:
Windows Vista
Windows Vista Service Pack 1 (SP1)
Windows Server 2008
Restart requirement
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other previously released
hotfixes.
Registry information
To use this hotfix, you do not have to make any changes to the
registry.
File information
The English version of this hotfix has the file
attributes (or later file attributes) that are listed in the following table.
The dates and times for these files are listed in Coordinated Universal Time
(UTC). When you view the file information, it is converted to local time. To
find the difference between UTC and local time, use the Time
Zone tab in the Date and Time item in Control
Panel.
Windows Vista and Windows Server 2008 file information note
The files that apply to a specific product or milestone (RTM,
SPn) can be identified by examining the file version numbers as shown in the
following table:
Collapse this tableExpand this table
Version
Product
Milestone
Service branch
6.0.6000.20xxx
Windows
RTM
LDR
6.0.6001.22xxx
Windows Vista SP1 and Windows Server 2008 SP1
SP1
LDR
Service Pack 1 is integrated into Windows Server 2008.
Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files
have a 6.0.0000.xxxxxx version number.
The MANIFEST files (.manifest) and MUM files (.mum)
that are installed for each environment are listed separately . MUM and MANIFEST files, and
the associated security catalog (.cat) files, are critical to maintaining the
state of the updated component. The security catalog files (attributes not
listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File name
File version
File
size
Date
Time
Platform
Win32k.sys
6.0.6000.20880
2,029,056
23-Jul-2008
00:54
x86
Win32k.sys
6.0.6001.22227
2,032,128
23-Jul-2008
01:00
x86
For all supported x64-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File name
File version
File
size
Date
Time
Platform
Win32k.sys
6.0.6000.20880
2,750,976
23-Jul-2008
01:08
x64
Win32k.sys
6.0.6001.22227
2,741,760
23-Jul-2008
01:33
x64
For all supported Itanium-based versions of Windows Server 2008