
There are times when a directory needs watched. For reasons of its own, a program may need to know when a file is deleted, updated or renamed. If .NET is involved, this is a trivial task. Create an instance of the FileSystemWatcher; set some properties, and the task is completed. If a non .NET solution is required (and regardless of the hype, some people haven't embraced .NET in all of its glory.), the ReadDirectoryChangesW function must be used, however the documentation for ReadDirectoryChangesW is sketchy at best.
Rick James is an idiot who does not have the intelligence to latch on to the fact that directory and file change monitoring is pretty much a standard mode of operation for many apps and background processes.