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Stop error code after you install Microsoft Multipath I/O (MPIO) on a computer that is running Windows Server 2008: "0x000000D1" or "0x00000050"

Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm.
A computer that is running Windows Server 2008 may restart unexpectedly after you install Microsoft Multipath I/O (MPIO). Additionally, you may receive one of the following Stop error messages:
  • STOP: 0x000000D1 (parameter1, parameter2, parameter3, parameter4)
  • STOP: 0x00000050 (parameter1, parameter2, parameter3, parameter4)
  • The four parameters that are in these error messages depend on the configuration of the computer.
  • Not all "0x000000D1" or "0x00000050" Stop error codes are caused by this problem.
This issue occurs because Microsoft Device Specific Module (Msdsm.sys) uses an incorrect variable to set the device information. This behavior causes the system to access an invalid memory address.
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.


To apply this hotfix, the computer must be running one of the following operating systems:
  • Windows Server 2008
  • Windows Server 2008 Service Pack 2 (SP2)
Additionally, the computer must have the MPIO feature installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfix.

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.

For all supported x86-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Msdsm.infNot Applicable4,47430-Oct-200909:16Not Applicable
Msdsm.infNot Applicable4,47430-Oct-200909:13Not Applicable
For all supported x64-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Msdsm.infNot Applicable4,48230-Oct-200909:17Not Applicable
Msdsm.infNot Applicable4,48230-Oct-200909:14Not Applicable
For all supported IA-64-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Msdsm.infNot Applicable4,47830-Oct-200909:15Not Applicable
Msdsm.infNot Applicable4,47830-Oct-200909:13Not Applicable
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information, 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 x86-based versions of Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Package_for_kb976748_client_1~31bf3856ad364e35~x86~~ Applicable1,36731-Oct-200903:39Not Applicable
Package_for_kb976748_client_2~31bf3856ad364e35~x86~~ Applicable1,69331-Oct-200903:39Not Applicable
Package_for_kb976748_client~31bf3856ad364e35~x86~~ Applicable1,71331-Oct-200903:39Not Applicable
Package_for_kb976748_sc_0~31bf3856ad364e35~x86~~ Applicable1,42131-Oct-200903:39Not Applicable
Package_for_kb976748_sc_1~31bf3856ad364e35~x86~~ Applicable1,69031-Oct-200903:39Not Applicable
Package_for_kb976748_sc~31bf3856ad364e35~x86~~ Applicable1,70131-Oct-200903:39Not Applicable
Package_for_kb976748_server_0~31bf3856ad364e35~x86~~ Applicable1,42531-Oct-200903:39Not Applicable
Package_for_kb976748_server_1~31bf3856ad364e35~x86~~ Applicable1,69431-Oct-200903:39Not Applicable
Package_for_kb976748_server~31bf3856ad364e35~x86~~ Applicable1,71331-Oct-200903:39Not Applicable
X86_msdsm.inf_31bf3856ad364e35_6.0.6001.22554_none_ca9ed8a3f4ce16f4.manifestNot Applicable1,66431-Oct-200903:45Not Applicable
X86_msdsm.inf_31bf3856ad364e35_6.0.6002.22256_none_cc874b1ff1f29ec6.manifestNot Applicable1,66431-Oct-200903:45Not Applicable

Additional files for all supported x64-based versions of Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Amd64_msdsm.inf_31bf3856ad364e35_6.0.6001.22554_none_26bd7427ad2b882a.manifestNot Applicable1,66631-Oct-200903:50Not Applicable
Amd64_msdsm.inf_31bf3856ad364e35_6.0.6002.22256_none_28a5e6a3aa500ffc.manifestNot Applicable1,66631-Oct-200903:50Not Applicable
Package_for_kb976748_client_1~31bf3856ad364e35~amd64~~ Applicable1,37531-Oct-200903:39Not Applicable
Package_for_kb976748_client_2~31bf3856ad364e35~amd64~~ Applicable1,70531-Oct-200903:39Not Applicable
Package_for_kb976748_client~31bf3856ad364e35~amd64~~ Applicable1,72331-Oct-200903:39Not Applicable
Package_for_kb976748_sc_0~31bf3856ad364e35~amd64~~ Applicable1,42931-Oct-200903:39Not Applicable
Package_for_kb976748_sc_1~31bf3856ad364e35~amd64~~ Applicable1,70231-Oct-200903:39Not Applicable
Package_for_kb976748_sc~31bf3856ad364e35~amd64~~ Applicable1,71131-Oct-200903:39Not Applicable
Package_for_kb976748_server_0~31bf3856ad364e35~amd64~~ Applicable1,43331-Oct-200903:39Not Applicable
Package_for_kb976748_server_1~31bf3856ad364e35~amd64~~ Applicable1,70631-Oct-200903:39Not Applicable
Package_for_kb976748_server~31bf3856ad364e35~amd64~~ Applicable1,72331-Oct-200903:39Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008

File nameFile versionFile sizeDateTimePlatform
Ia64_msdsm.inf_31bf3856ad364e35_6.0.6001.22554_none_caa07c99f4cc1ff0.manifestNot Applicable1,66531-Oct-200903:39Not Applicable
Ia64_msdsm.inf_31bf3856ad364e35_6.0.6002.22256_none_cc88ef15f1f0a7c2.manifestNot Applicable1,66531-Oct-200903:39Not Applicable
Package_for_kb976748_sc_0~31bf3856ad364e35~ia64~~ Applicable1,42531-Oct-200903:39Not Applicable
Package_for_kb976748_sc_1~31bf3856ad364e35~ia64~~ Applicable1,52931-Oct-200903:39Not Applicable
Package_for_kb976748_sc~31bf3856ad364e35~ia64~~ Applicable1,70631-Oct-200903:39Not Applicable
Package_for_kb976748_server_0~31bf3856ad364e35~ia64~~ Applicable1,42931-Oct-200903:39Not Applicable
Package_for_kb976748_server_1~31bf3856ad364e35~ia64~~ Applicable1,53331-Oct-200903:39Not Applicable
Package_for_kb976748_server~31bf3856ad364e35~ia64~~ Applicable1,71731-Oct-200903:39Not Applicable

For more information about MPIO, visit the following Microsoft Web site:

Article ID: 976748 - Last Review: 10/09/2014 14:29:00 - Revision: 3.0

Windows Server 2008 Datacenter without Hyper-V, Windows Server 2008 Enterprise without Hyper-V, Windows Server 2008 for Itanium-Based Systems, Windows Server 2008 Standard without Hyper-V, Windows Server 2008 Datacenter, Windows Server 2008 Enterprise, Windows Server 2008 Standard

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