remotely telnet (dos-based) on client

Problem:
Printer Server config,
IP 111.111.111.100
SM 255.255.255.0
GW 111.111.111.100
Obviously,GW was wrongly configured.

Client config(NT4 Platform),
IP 111.111.111.200
SM 255.255.255.0
GW 111.111.111.10 (correct GW IP addr)

however,Client can communicate with Printer Server.(same network)

Question:
MY PC can communicate with the Client,but noit the Printer Server.(different network)

How can i remotely correct the GW config on the Printer Server?

Is there any tool that i can use that connect remotely to the command prompt on the Client and use telnet program to correct the mistake?

Is there a dos-based telnet program that i can use to run it remotely on Client PC?(without having to visit the Client)

THKS