When you connect to your Microsoft Windows 2000 Server-based server through a null session, you may be able to use the Llsrpc named pipe to add or to delete licenses, and to create new license groups.
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This problem occurs because the Llsrpc named pipe is located under the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\NullSession
. As a result, any null session can access the Llsrpc named pipe.
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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 (http://support.microsoft.com/kb/260910/) How to Obtain the Latest Windows 2000 Service Pack
Note The installation of Windows 2000 Service Pack 4 may remove other entries from the NullSessionPipes key under the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
Service Pack 4 replaces the existing data in the NullSessionPipes key with the following registry data:
COMNAP COMNODE SQL\QUERY SPOOLSS EPMAPPER LOCATOR TrkWks TrkSvr
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Microsoft
has confirmed that this is a problem in the Microsoft products that are listed
at the beginning of this article.
This problem was first corrected in Windows 2000 Service Pack 4.
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