just for fun. there is a movie with this name, and some games

As has already been said, you could use PInvoke. However, I think you could also add a COM reference to Microsoft Windows Installer Object Library and work from there (msi.dll or something like that)

i Will suggest the book "Applied .Net framework proggramming" written by jeffrey richter. Concept that a pure VC++ programmer should understand is about the "Type and object" fundamentals in .Net world. It's structure and how it is handled.. it is bviously a managed one and governed by CLR. And as Christian Graus said you should go through the Garbage collection fundamentals. GC normaly runs as a low priority thread. You should also keep an eye on safe and unsafe concepts.. which you will surely comethrough when you are reading GC ... Shyam.. My Blog dotnetscoups.blogspot.com

I guess for getting the number in the first instance. A second gets it lowered by 1.:~ Greetings from Germany

Hi, I don't understand what you don't want to happen for the B class. do you want to hide the functionaly from a b object or the declaration; like this: int main() { A a; B b; a.fun(); // outputs "a" b.fun(); // compiles but doens't do something // or b.fun(); // doens't compile A* p = &b; p->fun(); // compiles but doens't do something b.A::fun(); // compiles but doens't do something } Maybe you could use the Facade pattern to hide the unwanted A functionaly. Learn from the mistakes of others, you may not live long enough to make them all yourself.