Now After .Net we know all language share same frame work and have same power. As in the past we (Visual Basic 6 Programmer) frequently lessen that you can't do this low level working in Visual Basic You must use C++ for that. I want to writ a program in VB .Net to connect with USB , Parallel port or Serial Port or other low level system hardware activities. How can i do in VB .Net. What Class must I use, Is it possible in now or you have the same answer You must do it in C++?