void* is leaps-and-bounds different from void. It is an expression, it has storage, you can actually assign something to it. You can't have a variable of type void; "void var;" is meaningless. A function doesn't "return" void. void simply denotes that a function doesn't return anything.
You can't have a variable of type void, but you can have an expression of type void - calling a function that returns void does just that (in C++, "throw" is also a void-typed expression).
