You need the files listed below to use the Arbortext IsoView ActiveX control:
PTC Files Required
Filename
IsoViewX73.ocx
IsoEngine73.exe
OptCGM.prf
DefaultHatchings.iso
Make sure to use the Arbortext IsoView 7.3 installer as provided by PTC to guarantee that all Microsoft redistributables of the required version are being installed on the target computer.