Are you sure that this isn't the innocuous Phone Dialer [DIALER.EXE - 67.3KB] included with Win9x?
I used it a lot at one time. Although it is restricted to 10 speed-dial numbers it can be hacked to produce different versions. Here's how - dialer.exe looks for dialer.ini in it's own folder for it's list of numbers. Copy dialer.exe to dialfamily.exe and open dialfamily.exe with a hex editor. Find the string dialer.ini and change it to dialfa.ini (or whatever you like, just keep the same number of characters). Now you have two different versions of dialer that you can use independently.
Ah, the joys of hacking....