Windows Services These are unattended applications, available only on Windows NT, 2000, and XP operating systems, that can start at boot time (or on-demand via the Service Control applet. The services can vary from an automatic backup to a file watcher to report generators to making sure there is room on a server, etc. FileChecker This service enables you to add hook up logic to be executed whenever a file has changes, is added to or deleted from a folder automatically. ptii-701