Closing a TCP port via DOS command ????? 1

[pbxphoneman]

Is there a simple way to close a TCP port via a DOS command even if it's for a short time?
While installing DSL routers for customers I'll encounter PC's that are infected with spyware/virus's. I'll do a NETSTAT and see a foreign address that is causing the problem....is there a way to close that connection even for a short time? To cause the machine to go back to a listening state for a short time till it (the spyware or virus) opens it up again (long enough for me to get to the free norton antivirus scan site and prove to the customer that they need a virus program).I have been rebooting the modem to get around this problem,but it's getting old.
most machines are either 98 or XP.

 

[Serbtastic]

To close the TCP port, you need to shutdown the process that has the port open. If using XP, use the netstat -ano command to show you the PID that has the port open, then use task manager to kill the process at that PID.

You can use Sysinternals freeware utility, tcpview (

http://www.sysinternals.com/Utilities/TcpView.html)

on Windows 98 to do the same thing.

 

[pbxphoneman]

yeah,that'll work...thanks!!!!!!