WinTopMost
software is a
desktop utility for an easy control running applications:

A) It
disables close button
for selected applications or just some windows based on application name or captions to ensure a proper use when there is a requirement of a clean logout before exit;

This feature can secure connections for example using Telnet or preventing impatient users to cancel a DOS batch and consequently causing abnormal termination 

B) WinTopMost also lets you
manage topmost applications to be always visible on your desktop
i.e. front end of all other windows displayed.