Remote admin without using port

Remote admin without using port ,, i know it has to use a port , but i mean like port 80 ,
basically i am behind a firewall and i don't wanna use change ports in the router,
I had software to do it before but i don't remember the name, to use like web admin on the IE and use the mouse and keyboard,
thank you

 

was it log me in?

thats what i use

http://logmein.com

 

not working for me , as there a similar one?

 

PCanywhere?

 

Now working fine, but change Retmote desktop port