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BIDI communication does not work when multiple print queues are installed to the same port on Windows 8

Consider the following scenario:

  • You have a Windows 8 machine.
  • You install a print queue to a SPM (Standard Port Monitor), WSD (Web Services for Devices), or USB (Universal Serial Bus) port.
  • After the print queue is installed, you install another queue to the same port.
After you install the second queue to the same port, you notice that BIDI (Bidirectional) communication is not working.
Having multiple print queues installed to the same port is not a supported scenario. In order for BIDI communication to work, the print queue can only enumerate one print driver.
To ensure Bidi communication works properly, do not install multiple print queues to the same port.
More information
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 2785648 - Last Review: 11/30/2012 00:03:00 - Revision: 1.0

  • Windows 8 Enterprise
  • Windows 8 Pro
  • KB2785648