Article ID: 815458
Article Last Modified on 10/26/2006
APPLIES TO
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Professional Edition
- Microsoft Windows 2000 Server
SYMPTOMS
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.
CAUSE
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.
RESOLUTION
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
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
STATUS
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.
Keywords: kbhotfixserver kbqfe kbwin2ksp4fix kbwin2000presp4fix kbfix kbbug KB815458
