## Virtual Device Driver Reference for OS/2

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### DOS Settings PRINT_SEPARATE_OUTPUT

The user can set the DOS setting PRINT_SEPARATE_OUTPUT to specify whether or not the virtual parallel port device driver should separate INT 17h output sent to the same device by two different DOS programs that are running in the same DOS session.

If set OFF, the VLPT will not open a new data stream each time the Program Segment Prefix (PSP) changes.