Microsoft KB Archive/933547

= FIX: Windows Media Player 11 may crash if you plug in certain flash memory devices while you use Windows Media Player in Windows XP =

Article ID: 933547

Article Last Modified on 3/15/2007

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APPLIES TO


 * Microsoft Windows Media Player 11

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SYMPTOMS
If you plug in certain flash memory devices while you use Microsoft Windows Media Player 11 in Microsoft Windows XP, Windows Media Player may crash.



CAUSE
This problem occurs because certain flash memory devices have noncompliant descriptor layouts. When WMDM (Windows Media Device Manager) tries to read the manufacturer name from the memory device, a memory access violation occurs. Because WMDM runs as a part of Windows Media Player, the memory access violation causes Windows Media Player to crash.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Windows XP for x86-based computers (all languages)
The following files are available for download from the Microsoft Download Center:

Download the WindowsMedia11-KB933547-x86-INTL.exe package now.

Note This hotfix does not have a 64-bit version for Windows XP. This hotfix package applies the 32-bit version of this hotfix on the 64-bit version of Windows XP.

Windows XP for x64-based computers (all languages)
Download the WindowsMedia11-KB933547-x64-INTL.exe package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

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The 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.



STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
Manufacturers who create memory devices should make sure that they follow the Windows Driver Kit documentation for the STORAGE_DEVICE_DESCRIPTOR data structure. The values for the VendorIdOffset member, the ProductIdOffset member, the ProductRevisionOffset member, and the SerialNumberOffset member are supposed to be a byte offset into the block of memory that is returned by using the IOCTL_STORAGE_QUERY_PROPERTY request. If the item is not present, the value for the following three members is 0:
 * VendorIdOffset
 * ProductIdOffset
 * ProductRevisionOffset

However, the value for the SerialNumberOffset member is -1.

Additional query words: wmdm crash watson bucket A2WBSTR mspmsp

Keywords: atdownload kbfix KB933547

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