I plugged the barcode reader into my computer and the USB virtual com address does not appear in the device manager or the application I downloaded.
My barcode appears as port (com lpt) in the device manager from sources and there is com information, but no matter what I tried, it didn’t work. I downloaded an application from the barcode reader’s website and it was supposed to automatically define the com address, but nothing came out from there either.

I tried all the situations in the device manager one by one to find the USB virtual com address, but the port (com lpt) information did not appear. Finally, I looked at the USBs from the command prompt and encountered two situations. While making the codes, I wrote and compared both with and without the barcode reader. There is no problem in one code, but there is a change in the other. It didn’t work, when I looked at userdview, the port that was active in device manager showed as inactive in userdview.