Interfacing with windows

Okay I have been programming with the Arduino for awhile now and I have a project that I want to build. I want to make a program in visual studio 2008 that connects to a arduino via usb to control the state of a led.

I am a complete novice when it comes to programming in visual studio (or anything other than the arduino environment and Qbasic)

If someone can point me in the direction of a suitable tutorial or sample program code I would appreciate it.

Consider yourself pointed: