If your application is a well-behaving application in a well-behaving environment, then it will most likely run in a reasonable amount of time. Furthermore, if

If your application is a well-behaving application in a well-behaving environment, then it will most likely run in a reasonable amount of time. Furthermore, if you leak a few mutexes, it's not really a big deal for most applications. I think one of the implied points of the article is that you should not rely on finalizers for anything time sensitive or critical. For instance, if you MUST close a file handle or database connection, you should never rely on a .NET finalizer to do it because it's not predictable when or if it will run. You should explicitly close it (most likely by implementing and calling Dispose().)