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Thank you again. I found that link earlier from your previous suggestion. It sounds like it could work although somewhat complicated. I will study it and probably implement in the future.
Meanwhile I found an easier, although not ideal, solution. After considerable study of the printer vendor's very sketchy documentation, I found that they provide a virtual serial port emulation to support legacy applications. With a minimum of rework, I was able to implement that and it does get the job done. The major drawback seems to be that the virtual port disable the standard printer driver. The result appears as a full second delay between opening the drawer and printing the receipt. This happens regardless of the order of the operations. I can live with that for now until I get installed and running. Later I will look into the USB solution.
Thanks again for all your help,
Bayless
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