Spring RTS Engine

Ok, so I've managed to save a game by pressing F8. I was playing a game with my dad over LAN when it crashed, luckily I saved the game beforehand. I am wondering how he joins the game once I've loaded it through the spring.exe?

Eh, I do believe that saving midgame causes the crash...

First load the quicksave.
Then on the other pc try opening spring with the /c switch (spring.exe /c) and enter the local ip address of the server. Ask where you need me to explain more.
And I haven't tried this before so I dunno if it'll work.