Identifying Top Level Assemblies in PDMLink

Hello,

We have a need to identify all the Pro/E Top Levels Assemblies that exist in our PDMLink 9.0 M030 database. If any of the sub-assemblies to the top level assy contain other parts or assemblies, we are not interested in them. Does anyone know if/how this can be accomplished using normal search methods or other means?

TIA,

Louis R.