Putty for Telnet access

Hello,

I am traying yo user putty to do telnet access to my router using the Remote Desktop Manager V 5.7.2.2 standar, and everytime when I double click my connection I am getting the follow error:

Putty Command Line Error

The -pw option can only be used with the SSH protocol

But in the connection options I have configure protocol telnet and I have set the port to 0 to user the default option..

Any help will be really appreciated.
:)
BTW if I access another device using SSH it works properly