Q: I removed the TCP/IP
keys and attempted to reinstall TCP/IP. In doing so, I received the message, "The
Registry Subkey Already Exists." How do I fix this problem?
Ensure that you properly
removed all the components of a given TCP/IP service. Then, using the Registry
editor very carefully (see screen A), make certain the following Registry
subkeys are removed.
HKEY_LOCAL_MACHINE\Software\Microsoft\NetBT
HKEY_LOCAL_MACHINE\Software\Microsoft\Tcpip
HKEY_LOCAL_MACHINE\Software\Microsoft\TcpipCU
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\DHCP
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\Lmhosts
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\
'NetDriver'\Parameters\Tcpip
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\NetBT
SNMP Service:
HKEY_LOCAL_MACHINE\Software\Microsoft\RFC1156Agent
HKEY_LOCAL_MACHINE\Software\Microsoft\SNMP
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\SNMP
TCP\IP Network Printing Support:
HKEY_LOCAL_MACHINE\Software\Microsoft\LPDSVC
HKEY_LOCAL_MACHINE\Software\Microsoft\TcpPrint
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\LPDSVC
FTP Server Service:
HKEY_LOCAL_MACHINE\Software\Microsoft\FTPSVC
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\FTPSVC
Simple TCP\IP Services:
HKEY_LOCAL_MACHINE\Software\Microsoft\SimpTcp
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\SimpTcp
DHCP Server Service:
HKEY_LOCAL_MACHINE\Software\Microsoft\DhcpMibAgent
HKEY_LOCAL_MACHINE\Software\Microsoft\DhcpServer
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\DhcpServer
WINS Server Service:
HKEY_LOCAL_MACHINE\Software\Microsoft\Wins
HKEY_LOCAL_MACHINE\Software\Microsoft\WinsMibAgent
HKEY_LOCAL_MACHINE\SYSTEM\CCS\Services\Wins