Error Message When Installing TCP/IP or Adding TCP/IP Service
ID: Q151237
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The information in this article applies to:
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Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
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Microsoft Windows NT Server versions 3.5, 3.51, 4.0
SYMPTOMS
When you attempt to reinstall TCP/IP or add a TCP/IP service, you may
receive one or more of the following error messages:
- Registry service subkey already exists
-or-
- Unable to remove name space provider
RESOLUTION
To correct this problem, ensure all the components of a given TCP/IP
Service are properly removed, and then ensure the following registry
subkeys are also removed before you reboot the computer:
IMPORTANT: If you have Windows NT 4.0 with Service Pack 2, see the
following article in the Microsoft Knowledge Base before removing any
registry keys:
Q162837Replacing TCPIP after SP2 causes STOP 0x00000050
WARNING: Using Registry Editor incorrectly can cause serious, system-
wide problems that may require you to reinstall Windows NT to correct
them. Microsoft cannot guarantee that any problems resulting from the
use of Registry Editor can be solved. Use this tool at your own risk.
NOTE: You may or may not have all of the following Registry entries
Depending on your TCP/IP configuration.
NOTE: CCS=CurrentControlSet
HKEY_LOCAL_MACHINE\Software\Microsoft\DhcpMibAgent
HKEY_LOCAL_MACHINE\Software\Microsoft\DhcpServer
HKEY_LOCAL_MACHINE\Software\Microsoft\FTPSVC
HKEY_LOCAL_MACHINE\Software\Microsoft\LPDSVC
HKEY_LOCAL_MACHINE\Software\Microsoft\NetBT
HKEY_LOCAL_MACHINE\Software\Microsoft\RFC1156Agent
HKEY_LOCAL_MACHINE\Software\Microsoft\SNMP
HKEY_LOCAL_MACHINE\Software\Microsoft\SimpTcp
HKEY_LOCAL_MACHINE\Software\Microsoft\Tcpip
HKEY_LOCAL_MACHINE\Software\Microsoft\TcpipCU
HKEY_LOCAL_MACHINE\Software\Microsoft\TcpPrint
HKEY_LOCAL_MACHINE\Software\Microsoft\Wins
HKEY_LOCAL_MACHINE\Software\Microsoft\WinsMibAgent
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\DHCP
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\DhcpServer
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\FTPSVC
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\Lmhosts
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\LPDSVC
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\NetBT
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\SimpTcp
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\SNMP
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\Tcpip
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\Wins
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\WinSock
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\WinSock2
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\'NetDriver'x\Parameters\Tcpip
where NetDriver is the name of network card installed on system and
where x is the number of the network adapter.
It may also be necessary to remove the following keys:
HKEY_LOCAL_MACHINE\System\CCS\Enum\Root\Legacy_DHCP
HKEY_LOCAL_MACHINE\System\CCS\Enum\Root\Legacy_Lmhosts
HKEY_LOCAL_MACHINE\System\CCS\Enum\Root\Legacy_LPDSVC
HKEY_LOCAL_MACHINE\System\CCS\Enum\Root\Legacy_NetBT
HKEY_LOCAL_MACHINE\System\CCS\Enum\Root\Legacy_TCPIP
HKEY_LOCAL_MACHINE\System\CCS\Services\LanManServer\Linkage\Bind
HKEY_LOCAL_MACHINE\System\CCS\Services\LanManWorkstation\Linkage\Bind
NOTE: Removing these additional keys requires manipulation of the rights on
those keys. The default rights for Everyone is READ. This needs to be done
for each key you wish to remove. To change the rights, log on as
Administrator, run Regedt32.exe, and select the key you want to delete.
From the menu, select Security, Owner, Take ownership. Then, Select
Security, Permissions, and give full control to Everyone, selecting
"Replace permission on existing subkeys."
Reboot the computer so that Registry changes are recognized by Windows NT.
Additional query words:
remove manual manually regedt32 how to howto
Keywords : kbnetwork nttcp
Version : winnt:3.5,3.51,4.0
Platform : winnt
Issue type : kbprb