This method is equivalent to the Close method, but it can be called by using the IDisposable interface.
Call Dispose when you are finished using the WaitHandle. The Dispose method leaves the WaitHandle in an unusable state. After calling Dispose, you must release all references to the WaitHandle so the garbage collector can reclaim the memory that the WaitHandle was occupying.
Always call Dispose before you release your last reference to the WaitHandle. Otherwise, the resources it is using will not be freed until the garbage collector calls the WaitHandle object's Finalize method.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)