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When you run the control userpasswords command on the domain controller, the Rundll32.exe and the Lsass.exe process cause 100 percent CPU utilization, and the Rundll32.exe process exhausts all memory.
To resolve this problem, obtain the latest service pack for Microsoft 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 the Microsoft products that are listed in the "Applies to" section of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.