Creating a batch file to send the label files to the printer

Only if the application that can open & display the bar code has documented methods of command line control.
Otherwise, you'll have to run the application itself and print from there.

If the application has a support website or a user forum you might get appropriate guidance there.

Denis

You seem to be asking a closely-related question in
Printing barcode labels one clic


See some of the results of a search
batch file print png file - search results by DuckDuckGo
such as the suggested command

Code:

mspaint /pt [image filename]

which can be put in a batch file.

Denis

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how can i print with 1 click or keyboard shortcut - TenForums

Denis