Ws2bakup

WS2BAKUP, when used correctly will restore TCP/IP from Winsock 2 back to the original Winsock 1.1.
When restoring the original files using WS2BAKUP, you should first run the WS2BAKUP.BAT file in Windows, then boot into a clean DOS environment and run it again.
The reason for this is the restore procedure is required to access the registry (Hence we run it once in Windows) and because there are files already in use by windows which you need to do in DOS.
Once this is done, boot into Windows and remove TCP/IP, reboot and then reinstall it.
You should now have the original version of TCP/IP.

Simply removing TCP/IP and reinstalling it will not replace all the files correctly, even if you say "No" to the Version Conflict prompts which would over write the current version files with the original ones from the CAB files.