A value of zero (0) indicates that both primary and secondary documents are to be printed as a part of the same windows printing job.
A value of one (1) indicates that primary and secondary documents need to be printed using separate windows printing jobs.
This INI option can be used when the print driver and print device cannot modify job parameters like paper source, size, orientation and duplexing after a job has been initiated. However, this INI option should only be used when it is absolutely necessary as it dramatically degrades performance. Using a different print driver or even a different print device should be preferred alternatives.