Freeware Shorts: Directory Monitor
Directory Monitor (Version: 188.8.131.52 as of this post) is a program that keeps an eye on or monitors any number of directories for file additions, changes and deletions. These could be local or directories located on a network. These kinds of programs are very useful because a user can see and know what happens when for example a program is installed or uninstalled. As a more specific example many programs have a habit of creating directories in the My Documents folder and when uninstalling these sometimes cryptically named folders remain. Directory Monitor makes such scenarios more manageable.
Directory Monitor can generate alerts or tool tip balloons when changes occur and can also execute a command when a change happens. .NET Framework required.