Years ago (in 2012), I set up a system with BarTender and the old reliable CommanderWatch whereby a custom web app would create a data file (from a user-specified database query) and place it in one of four watched folders (each folder corresponded to a different printer). The system worked beautifully for years until the server OS had to be upgraded, requiring an upgrade of BarTender. 

I'm trying to recreate/resurrect the system on the new server with the new BarTender and I'm getting hung up on defining the Print action.

First, do I even need the Print Action if the BarTender CommandLine is already specifying the printer?

If I *do* need a Print Action, should it be the “Print BTXML Script” or “Print Command Script” action?