Microsoft KB Archive/142056

= Slow Performance with FPNW and More than 60 Printers =

Article ID: 142056

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 3.51
 * Microsoft File and Print Services for Netware 3.51

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This article was previously published under Q142056





SYMPTOMS
After you add more than 60 printers using Print Manager on a Windows NT Server running File and Print Services for NetWare (FPNW), server performance quickly degrades. Performance Monitor shows processor utilization at a constant 100%, while the user mode service portion of FPNW (NWSSVC.EXE) and the Windows NT spooler (SPOOLSS.EXE) shows between 45% and 55% of the processor utilization. Acceptable performance levels are returned if the number of printers defined is reduced to 60 or less.



CAUSE
The FPNW printing component does not scale well to large numbers of printers (greater than 60) due to its current program design.



RESOLUTION
To resolve this problem, upgrade to Windows NT Server version 4.0.

The program design for the FPNW printing component has been changed for the next release of Windows NT, removing the scaling problem.



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in Windows NT Server version 4.0.

Additional query words: prodnt

Keywords: kbprint KB142056

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