thanks for the replies guys.
Ya i ll love to go with ASP.net or use VB.net (Sockets) to communicate with my computer connected to Arduino.
I built a client Server in vb.net using TCP classes and i think i can use that to communicate with that arduino connected computer and then talk to arduino. How about this?
BTW can ASP.net communicate to Serial Ports? But i think its not that secure right?