SMS: Clients or Servers with SMS 2.0 Components Installed May Reach 100 Percent CPU Usage

This article was previously published under Q281210
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In some cases, the CPU usage on a Systems Management Server (SMS) client or server computer may reach 100 percent and may remain at 100 percent. This article describes one potential cause of this behavior.

Note that the behavior that is described in this article is not the only cause of 100-percent CPU usage on an SMS client or server computer.
This behavior can occur when the logging that is performed by the SMS client or server services in conjunction with the Cheyenne InocuLAN antivirus program cause the CPU usage to reach 100 percent. This behavior has been observed in, but is not limited to, the Smsapm32 client-side process and the Sms_Executive service.
To work around this behavior, use either of the following methods:
  • Stop the Cheyenne InocuLAN antivirus server service

  • Disable all logging for the SMS process or processes that are involved
NOTE: In some cases where hardware is either extremely busy or underpowered, you may have to spend a considerable amount of time to move through and stop the InocuLAN service.


To resolve this behavior, use InocuLAN driver version 5.0.4521.1 or later for Microsoft Windows 2000 or InocuLAN driver version 4.0.4521.1 for Microsoft Windows NT 4.0. This driver is located in the Ino_fltr.sys file.
The CPU usage can remain at 100 percent until you stop the InocuLAN service or restart the computer.

To check the version of your driver, click the Version tab in the properties of the Ino_fltr.sys file in the Winnt\System32\Drivers folder. Note that you must restart your computer to replace the existing driver files.

To install the update, view the following Computer Associates Web site:To install the update for Intel-based computer, view the following Computer Associates File Transfer Protocol (FTP) Web site:Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
prodsms ino_fltr sys

Article ID: 281210 - Last Review: 02/28/2014 04:23:41 - Revision: 2.3

  • Microsoft Systems Management Server 2.0
  • Microsoft Systems Management Server 2.0 Service Pack 1
  • Microsoft Systems Management Server 2.0 Service Pack 2
  • Microsoft Systems Management Server 2.0 Service Pack 3
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