Excessive Processor Usage on Print Servers

Article translations Article translations
Article ID: 182333 - View products that this article applies to.
This article was previously published under Q182333
This article has been archived. It is offered "as is" and will no longer be updated.
Expand all | Collapse all

On This Page


Print servers show high processor usage (70 percent to 90 percent) in Performance Monitor. The print servers also receive RPC Server Too Busy errors, and clients report slow printing problems.


These symptoms occur because named pipe connections and server sessions are not timing out and disconnecting, which causes an excessive load on the server. Other symptoms of this issue are a high handle count for Spoolss.exe (more than 15,000) and a high number of named pipes or spoolss sessions for any one user connected to the server.


Windows NT 3.51

To resolve this problem, obtain the following fix.

This fix should have the following time stamp for Windows NT 3.51

Collapse this tableExpand this table
04/09/9803:17p72,896 win32spl.dll(Intel)
04/09/9803:19p111,376 win32spl.dll(Alpha)

Windows NT 4.0

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

This is a client fix that will result in idle pipes from the client to the print server being closed. The more clients it is applied to, the more relief the print server will experience.


Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.


Article ID: 182333 - Last Review: October 26, 2013 - Revision: 3.0
Applies to
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix KB182333

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com