can someone point me to the right direction?

[gin]

Could anyone give me a hand?
I have a project, where i have to to make a program that can send messages similar to the text messaging feature of cellular mobile phones. The only difference is we can use any means of tranmission; LAN, direct connection, Internet, or even using one computer and running the program simultaneously.
The problem is I don't know which protocol to use and where to begin. I have been looking for resources that can shed light to the topic but i can't seem to find anything. I was hoping someone could suggest a few sites or give me something i can use to get started on the whole thing

[Clunietp]

I believe everything uses TCP/IP to communicate over the internet (those mobile devices too, right?) so I would start there

[gin]

Thanks for the tip been looking at that too. I also found something on DDE. Can i use DDE to communicate to more than one program simultaneously? Or does it only work in a one to one basis?

[Clunietp]

DDE is dead. Don't use it

[PRGRMR]

I think the TCP/IP is what you´re looking for. And Clunietp is on the right track.

best regards PRGRMR

[gin]

hehehe it is? good thing you told me. Thanks for the tip guys at least i'm getting somewhere. Any specific sites i should try? Or is it something i can easily get in any site
Again i appreciate the help hope i can return the favor =)