It goes through a couple of canned software applications. One is called commander that will run as a service a "polls" a folder. When a file drops in to that folder commander is supposed to print it through the Bartender application. This is an application for printing barcode labels. So to answer you question I do not know what command Bartender is sending to the printer. I just know it works when ran as a local admin as a service and it works as a user or power user when not in run as service mode. Their tech support thought I was crazy for not wanting to run it under loacal admin and did not know what permission "tweaks" were needed. Thanks again Mike