>Yes, I justed tested with VFP6sp3 and the names were different... 'Custom3' and 'Custom4'

It's documented in VFP 7 help 'Behavior Changes since the Previous Version':
"For performance reasons, the CreateObject( ) function no longer adds a sequential number to the value for a dynamically created Name property. This applies to class definitions in .PRG files that do not have an explicitly set Name property and base classes".