Update:
Turns out the netlist file generated with PCB/Tools/Netlist/Export is the old Protel netlist format which is the exact format my custom program requires, so my missing test point program works with no modification!
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif)
It would be more convenient if this same file could be generated directly from the SCH side, but I can live with it.
I did consider looking at the EDIF and the ODB++ netlist formats and modifying my program to fit, but no need now. I just have to make sure the PcbDoc has been updated to include all components prior to exporting the netlist.
The more I use Circuit Studio, the less I miss Altium.