What works in my PC does not work in a Remote PC

I have written a database for someone else and installed it in their PC. It works just fine.

Now they want an update - to be able to view PDFs from Access. This works just fine from my PC with the command: Application.FollowHyperlink "C:\Users\nevadamax\Documents" & Me.[PDFName]

but does NOT work in the Remote PC. The error is "Cannot open this type of file."

References set in both PCs are:

I think that adding the extra references (in the red box) to the Remote PC would solve the issue.

1.How can I add the references I need?

2.Is there another reason for the problem besides references?

Thank you in advance for your help!

Max