Can you check which .OCX or .DLL a program uses?

There is a server with a program for a car part company, ive been trying to share this program onto a networked computer, problem is program runs but comes up with multiple errors all saying the same this. "ActiveX component can't create object". does this mean im missing an .ocx file or havent registered it? if so how do i find out what .ocx files are in relation to this program. other networked computers in this place have the program shared and it works fine. ie mimicked as much as i could. is there anyway to see a list of .OCX or .DLL files that are used by this app to pinpoint the problem?