USPS barcode 128 Character set C

Has anyone had trouble printing the start and end characters through Navision? I have successfully printed the barcode in Excel and Word, using the provided Visual Basic Macro. I have converted this macro to C/AL and all the numeric characters between the start and stop print fine. I’m not sure what to do next. Please HELP!

I tried the same thing a year or so ago and found out from Navision that the Report objects won’t let the special characters for the subset C barcode go through to the printer driver. This was in NF 2.00. I don’t know if the newer versions premit this. My guess is that they don’t. We ended up using a third party label printing program (Bar One) to print barcodes from Navision.