How to Monitor a Windows Folder for New Files and Take Action

Files are in a constant state of flux on any operating system. Sometimes they get created, sometimes they get deleted, sometimes they get changed, and those are all normal things for an operating system to do. Sometimes when a file gets changed, it can cause instability in another application that depends on it, such as changing a port number in a properties file, a parameter in a deployment manifest, or even fixing code in production without going through source control.