I think in .NET you just have to watch out for a different type of memory leak to what people traditionally think of as a memory leak. Whilst the GC takes care of 'proper' memory leaks, if you have a reference to an object that you no longer need to use then that is basically a memory leak because the GC cant clean it up. So you still need to be very careful, just not in quite the same way as in languages that dont have the GC... but I guess im not telling anyone anything new here, just giving my thoughts on the matter