>A class that implements IDisposable indicates to anything concerned that it should call Dispose(). This is, essentially, how the compiler translates the presence of a 'Using' block - if the created class implements IDisposable then it will automatically call Dispose() on that class at the end of the block.

And, in fact, it should be noted that if a class does not implement IDisposable, then you can't even have it in a using statement, you'll get a compiler error.

~~Bonnie