HttpWebRequest

[nutrione]

dude! I just told you

open up your Visual Studio project, go to solution explorer, right click on refference folder, click on "Add Refference", when a window appears, on ".NET" tab, search for "System.Web" and select it and click on ok, you're done.

what do you mean where? Friendfeed.com. go there, register, find your Remote Key (after you login, visit friendfeed.com/remotekey) and enter them in the code above on line 5: ("Username", "FFRemoteKey")
**Remenber your Remote Key is a private thing! like a password. don't post it here.

then run the project, and see what heppens. if you don't get any errors, check your friendfeed account to see that the text "Hello API" is posted on your feed or not.