In the days before Windows XP, a corrupted IP installation could often be fixed simply by removing and reinstalling TCP/IP. In most cases, the IP-related files remained intact, but some related Registry keys would be corrupted beyond repair.
You can't uninstall TCP/IP in Windows XP, because there is no Uninstall button for this protocol. According to Microsoft, that is because TCP/IP is an integral part of the operating system, and removing it would cause major problems. You can, however, use the Windows XP command line utility NetShell to reset all IP-related Registry settings to their default values. The result is a brand-new TCP/IP configuration.
The Netsh.exe program is located in the C:\Windows\ System32 directory. To use the program, enter the command "netsh int ip reset filename." You must specify a filename, such as Ipstuff.txt. After Netsh .exe runs, the file will contain a detailed log of the Registry keys that were modified.
SOURCE: PCMAG. (For complete article, please click here.)
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