Hi David....

Check out the Ainstance() function. To illustrate, lets say you want to know if an instance - or a number of instances fo the clsMyObjectClass class exists:

Ainstance(ainstancearray,"clsMyObjectClass")

An array - ainstancearray will be created that will hold the name of the variables that reference instances of the class.

An alternative method is to use a class that is responsible for instancing other classes.