Not Able to Run DirectSound Programs from DVD Drive on Windows 2000

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Article ID: 289236 - View products that this article applies to.
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When you try to run a DirectSound-enabled program from the DVD drive on a Dell, Compaq, or Gateway computer, the audio does not work correctly.


This behavior occurs because the Portcls.sys file does not permit the use of non-PCM wave formats. DirectSound always interfaces with the Portcls.sys file, which only supports PCM. Software DVD players require the use of non-PCM formats to play content such as digital audio.


To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack


Microsoft has confirmed that this is a problem in Microsoft Windows 2000.

This problem was first corrected in Windows 2000 Service Pack 2.


Article ID: 289236 - Last Review: October 23, 2013 - Revision: 3.2
  • Microsoft Windows 2000 Service Pack 1
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Service Pack 1
kbnosurvey kbarchive kbbug kbfix kbenv kbprogramming kb3rdparty kbsound KB289236

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