TCP/IP stack repair options for use with Windows XP
For these commands click on Start.... Run..... type in...CMD ....click OK
To Reset WINSOCK entries to installation defaults...type in ... netsh winsock reset catalog .... press ...enter
To Reset TCP/IP stack to installation defaults...type in...... netsh int ip reset reset.log ... press ...enter
To repair and reset Windows Vista
1. Click on Start button.
2. Type Cmd in the Start Search text box.
3. Press Ctrl-Shift-Enter keyboard shortcut to run Command Prompt as Administrator. Allow elevation request.
4. Type netsh winsock reset in the Command Prompt shell, and then press the Enter key.
5. Restart the computer.