problem with filesystemwatcher and copying a file

Question

I have created a class that uses the filesystemwatcher to watch a directory for any changes.  It fires an event whenever a file is saved to that directory.  However, when I copy a file to that directory, no creation or changed event is raised.  Is there something else I need to wire up in the fsw to have it raise an event when a file gets copied to that directory?  Thanks.