I am using Desktop Manager 4.6.

I want to load a new application without making any change to the other apps.

Turns out that I have Documents to Go 1.5.30 on my BB and Documents to Go 1.0.80 on my PC (came with the new OS 4.5).
By default, the DM select a downgrade of Documents to Go. If I click on Documents to Go, the DM switchs to remove application.

How do I prevent the downgrade from happening (forcing no action)?

There are quite a few threads on this subject.

Thanks. Do you care to assist me in finding a relevant one?
I did some search to no avail.

You need to delete the DocumentsToGo.alx file from your 4.5 folder on your PC so that the upgrade doesn't reinstall the original version.

Wirelessly posted

Thanks. Will do.