Add OPOS printer support(repost)

I have a .Net 1.1 application (I believe it was written in Visual Studio 2003). The application currently supports using Windows Printers. I need to add the ability to also support printers that use an OPOS (Open Point of Sale) ? driver instead of Windows driver.? For example, the Epson TM-T88III printer.? I need the code added to support? OPOS printers, and add the OPOS printer name variable to the config file. There should be a flag in the config file that identifies if you are using a Windows or OPOS printer. Thanks