Runtime Error 429: ActiveX component cannot create object

I'm a desktop support person trying to help a client with an application error. I am not a programmer, do not have access to source code and have been unable to contact the original programmer.

Several years ago they got a programmer to write an EDI (Electronic Document Interchange) application for them to exchange documents with their suppliers.

They want to move the installation to a new PC. The software installed fine, but when they launch it they get an error Runtime Error 429: ActiveX component cannot create object.

I have tried searching for help, but a lot of the results are written for programmers who have access to source code etc. All I have is the install disk and no instructions. The install disk has a setup.exe, setup.lst and edi.cab file.

The OS it is being installed on is Windows XP SP2.

I realise this may not be enough information, so please let me know what I need to do to find out any information that will help.

Many thanks.