A hotfix is available that addresses occasional crashes of Vmwp.exe processes on a Windows Server 2008-based Hyper-V host computer
When you are running Hyper-V virtual machines on a Windows Server 2008-based Hyper-V host computer, some Vmwp.exe processes may crash occasionally. This problem may occur when the guest operating system is using an alpha-blended cursor. This problem may also occur when the host computer is running under a stress condition, such as when many virtual machines are running in parallel.
Hotfix informationImportant Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.
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 the problem described in this article. 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.
PrerequisitesTo apply this hotfix, you must have the Hyper-V role installed.
Restart requirementYou must restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe Global 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 Server 2008 file information notes
- The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
Version Product SR_Level Service branch 6.0.6000.16xxx Windows Vista RTM GDR 6.0.6000.20xxx Windows Vista RTM LDR 6.0.6001.18xxx Windows Vista and Windows Server 2008 SP1 GDR 6.0.6001.22xxx Windows Vista and Windows Server 2008 SP1 LDR 6.0.6002.18xxx Windows Vista and Windows Server 2008 SP2 GDR 6.0.6002.22xxx Windows Vista and Windows Server 2008 SP2 LDR
- Service Pack 1 is integrated into Windows Server 2008.
- The MANIFEST files (.manifest) and the 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 x64-based versions of Windows Server 2008
|File name||File version||File size||Date||Time||Platform|
|Rdp4vs.mof||Not Applicable||1,064||01-Apr-2009||16:00||Not Applicable|
|Rdp4vs.mof||Not Applicable||1,064||03-Apr-2009||20:43||Not Applicable|
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Additional file information for Windows Server 2008
Additional files for all supported x64-based versions of Windows Server 2008
|File name||File version||File size||Date||Time||Platform|
|Amd64_microsoft-windows-t..aboration-rdp4vsapi_31bf3856ad364e35_6.0.6001.22426_none_8a4c5ad11bd098b5.manifest||Not Applicable||7,669||06-May-2009||16:34||Not Applicable|
|Amd64_microsoft-windows-t..aboration-rdp4vsapi_31bf3856ad364e35_6.0.6002.22129_none_8c35cd9718f439de.manifest||Not Applicable||7,669||06-May-2009||15:19||Not Applicable|
|Package_for_kb970089_sc_0~31bf3856ad364e35~amd64~~126.96.36.199.mum||Not Applicable||1,528||07-May-2009||07:23||Not Applicable|
|Package_for_kb970089_sc_1~31bf3856ad364e35~amd64~~188.8.131.52.mum||Not Applicable||1,537||07-May-2009||07:23||Not Applicable|
|Package_for_kb970089_sc~31bf3856ad364e35~amd64~~184.108.40.206.mum||Not Applicable||1,711||07-May-2009||07:23||Not Applicable|
|Package_for_kb970089_server_0~31bf3856ad364e35~amd64~~220.127.116.11.mum||Not Applicable||1,532||07-May-2009||07:23||Not Applicable|
|Package_for_kb970089_server_1~31bf3856ad364e35~amd64~~18.104.22.168.mum||Not Applicable||1,541||07-May-2009||07:23||Not Applicable|
|Package_for_kb970089_server~31bf3856ad364e35~amd64~~22.214.171.124.mum||Not Applicable||1,722||07-May-2009||07:23||Not Applicable|
Article ID: 970089 - Last Review: 10/07/2011 21:07:00 - Revision: 3.0
Windows Server 2008 Standard, Windows Server 2008 Enterprise, Windows Server 2008 Datacenter
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