Networking for send command (string, float, boolean, int)

Hi guys, I'm working on simulation project that require me to create 2 seperate games and send command to each other (one game have only GUI function and other have 3d invirontment ). Some one use resolution trick but i don't use it so i plan to do some thing about networking, the problem is that i don't know any thing about net working on Unity, so can any one please show me the outline or some tutorial about networking on my situation (i'm focusing on Tnet by Tasharen, but i don't know how Tnet handle my situation).

By the way, i think XML serializer can do it, but performance may be slow.

Can any one give me some advices.

Thanks in advance.