Vendor name of the supported printers, such as VENDORNAME=HP.
Names of extra files required for correct operation by the driver files in the VENDORNAME directory, such as REQUIREDVENDORFILES=HP_ADDF.DLL.
Names of extra files that are optional, that is, files not required for correct operation, such as OPTIONALVENDORFILES=PCLHELP.HLP, HP_ADDF.SYM, HP_ADDF.MAP.
Name of the output stream created by the hardcopy driver, such as CLASSNAME=PCL.
Names of extra files required for correct operation by the driver files in the CLASSNAME directory, such as REQUIREDCLASSFILES=GENERIC.DLL.
Names of extra files that are optional, that is, files not required for correct operation, such as OPTIONALCLASSFILES=*.FNT, GENERIC.SYM, GENERIC.MAP.
Names of extra files required by the driver for correct operation, such as REQUIREDDRIVERFILES=LASERJET.DRV.
Names of extra files that are optional, that is, files not required for correct operation, such as OPTIONALDRIVERFILES=LASERJET.SYM, LASERJET.MAP.