Windows Media Server Rights Manager May Stop Serving Licenses

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Article ID: 257200
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The Windows Media Rights Manager may stop serving licenses.


A challenge string is converted to uppercase, which causes the license object to correctly report an error message. However, all further requests to new license objects created in the same process fail with a 2009 error message because an internal static table has become corrupted.


A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:;EN-US;CNTACTMS
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.

The English version of this fix should have the following file attributes or later:
   Date      Time    Version      Size    File name         Platform
   03/03/20  18:18 4.1.6160.0    219,120  Wmrmu8912_nt4.exe x86 
   03/03/20  18:23    108,768  Licenseserver.dll x86 

The following file is available for download from the Microsoft Download Center:
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Download Wmrmu8912_nt4.exe now
For additional 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
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.


Microsoft has confirmed that this is a problem in Microsoft Windows Media Right Manager 1.0.


Article ID: 257200 - Last Review: January 10, 2015 - Revision: 3.0
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