Print queues defined with port names that begin with TS# are deleted upon server restart

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Symptoms

Print queues are deleted upon restart of the server when the port name of the print queue begins with "TS#" ("#" is a placeholder for a number). When this occurs, the following event is generated in the Print Operational Event log:

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Cause

This behavior is by design. It is part of the Terminal Server printer clean-up functionality that is built into Windows.

Upon restart of the server, any nondefault Terminal Server printers are deleted. Specifically, a check is made against the port name of the printers that are configured on the server. Any ports that are found to be in use that begin with TS# are deleted upon server restart. This clean-up activity is only triggered upon server restart. Restarting spoolsv.exe will not trigger this activity.

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