This article was previously published under Q191256
This article has been archived. It is offered "as is" and will no longer be updated.
We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 7.0 running on Microsoft Windows Server 2008. IIS 7.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:
The Internet Information Server (IIS) log-file format contains a parameterfor processing time. This field is the total amount of processing timethat is spent on the server for a particular DLL. This internal timerstarts on Packet 1 and ends on the last Acknowledgement received from theclient indicating that that the processing has been completed on theserver. However, the logged time is not correct if KeepAlive is enabledfor the connection between the IIS computer and the Internet browser.
The counter that measures time is not reset for KeepAlive connections.
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 theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed this to be a problem in Internet InformationServer version 4.0. 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.