PRB: Cannot Specify Multiple Port Names Under Windows 95

 Last reviewed: November 6, 1996
Article ID: Q158361
The information in this article applies to:
  • Microsoft Win32 Software Development Kit (SDK) for Windows 95, version 4.0

SYMPTOMS

SetPrinter fails when pPortName is set to multiple ports under Windows 95.

CAUSE

The use of multiple ports (printer pooling) is not supported under Windows 95.

WORKAROUND

If printer pooling is desired, Windows NT should be used. Otherwise, a single port should be specified under Windows 95.

STATUS

This behavior is by design.

MORE INFORMATION

The Win32 SDK documentation for PRINTER_INFO_2 states that multiple port names can be specified in the pPortName field. However, the documentation fails to state that this is only valid under Windows NT. Printers may not be connected to multiple ports under Windows 95.

SetPrinter will fail with error "#1796 - ERROR_UNKNOWN_PORT" if multiple ports are specified under Windows 95.

KBCategory: kbprint kbprb
KBSubcategory: GdiPrn
Additional reference words: 4.00 GetPrinter pool kbdsd



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Last reviewed: November 6, 1996
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