It will load the MSP3880-W /Enumerator INF ver:2.12.10 and the /Win9X Child INF.
zip file also contains the MDM4055.CTY file which contains all the major country codes and the MDMP4055.CAT file. VXD and DLL files are contained in the MSP3880W sub-folder.
After 3 days of trying to find the correct AU driver files without success, I made it up myself.
HP (Hewlett-Packard) did not have AU files for this modem MSP3880-W(V) on a HP Pavilion 6616 Desktop PC only had UK CTY codes or North America and or Europe CTY codes.
My driver files worked like a charm. Tried most of the available files DriversGuide.com but none with AU CTY that I could find – Now you have one !!