Tribes.exe is a Program that is supposed to Help "Select Tribes based on own and enemy units."
It was created with Visual Basic and therefore needs the Visual Basic Libary DLL. Basically it should be used by People who are just interested in the aspects of the Age of Empire Tribes or by Somebody who is new to the game.

It is based on a Table found at:

http://www.geocties.com/~realsimmayor/aoetribecard3.html