Winsock Functions

I need some help from someone who is familiar with Winsock function calls.
What I'm working on is an application that is run on 2 seperate computers,
and whenever one person clicks a button, his program connects to the other person's running instance of the program, and they exchange a few variables.
I've gone to many websites and I've read some of the help files included with my VC++ kit, but I really don't know how to do this. I've seen lots of info on how to set up servers and clients, but that's not what I need to do. I've also seen explainations of functions calls where the program already knows that it is going to receive data, but what if the program's request to the other computer is random? I hope someone can give me a simple answer, I've done some experimenting on my own, but I'm pretty much stuck. Thanks in advance!!!