after exploiting a winxp system (2600 ver) no SP
it tells me to connect to IP:4444 using netcat.
Did it worked since here ?
now what next ?

(is there a final ver of rpc better and universal?)

You certainly do need help with rpc...its a microsoft windows vulnerability, and wont work on Linux or Unix systems, so Ive moved this post from Linux and Unix systems to the beginners section.

Exactly like it says, use netcat to connect to that ip with the port set as 4444

nc -vv IP port