Show Compatibility Warning=<0 or 1>
If this value is set to 1 and the Printer Driver detects an application that is incompatible with the driver, it will show a warning message with a possible workaround and aborts the print job.
Set this value to 0 if you do not want to receive compatibility warnings and do not want the print job to be aborted (please note this may result in an application or printer driver crash). The default value is 1.