Our client runs Allscripts MISYS Tiger for their medical Billing Software. The Point of Sale Part of the software uses a very old OKI Microline 590 to print. Previously they were running the program on windows xp, and used the IBM Proprinter III driver, and everything worked fine. However, they have just upgraded to Windows 7 64 bit, and It appears the IBM Proprinter III Driver is not included in windows anymore. What options are there to get this printer working again?