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The DeviceType registry entry value is truncated when the Microsoft Storport driver is installed on a computer that is running Windows Server 2008 or Windows Vista


View products that this article applies to.

Symptoms

The Microsoft Storport driver (Storport.sys) is installed on a computer that is running Windows Server 2008 or Windows Vista. Then, you notice that the value of the DeviceType registry entry for storage devices is truncated to half of its length.

Note The DeviceType registry entry is located under the following registry subkey:
HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\Scsi\Scsi Port <x>\Scsi Bus <x>\Target Id <x>\Logical Unit Id <x>


In this subkey,
<x>
is a placeholder for a one-digit number.
For example, the value of the DeviceType registry entry may be truncated to "MediumChang" when the registry entry that is expected is "MediumChangerPeripheral."

Therefore, applications may function incorrectly when they retrieve the device type information from the DeviceType registry entry.

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Cause

This problem occurs because the Storport.sys driver incorrectly calculates the string size of the DeviceType registry entry.

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Resolution

Hotfix information

Important 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 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

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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 notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.0.6000.16xxxWindows VistaRTMGDR
    6.0.6000.20xxxWindows VistaRTMLDR
    6.0.6001.18xxxWindows Vista SP1 and Windows Server 2008 SP1SP1GDR
    6.0.6001.22xxxWindows Vista SP1 and Windows Server 2008 SP1SP1LDR
  • 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 and the .mum files that are installed in each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Storport.sys6.0.6000.20885120,37630-Jul-200803:24x86
Storport.sys6.0.6001.22232123,96030-Jul-200803:31x86
For all supported x64-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Storport.sys6.0.6000.20885135,73630-Jul-200803:39x64
Storport.sys6.0.6001.22232162,87230-Jul-200803:59x64
For all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Storport.sys6.0.6001.22232377,91230-Jul-200803:47IA-64

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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More information

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

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Keywords: kbautohotfix, kbexpertiseinter, kbbug, kbfix, kbhotfixserver, kbqfe, KB953390

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Article Info
Article ID : 953390
Revision : 2
Created on : 12/19/2008
Published on : 12/19/2008
Exists online : False
Views : 378