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Problem with Awstats and log files

When I open Awstats on our web server, I get the error attached below. I am assuming I need to change the LogFormat to something else, but it says that 2 is for IIS. Any ideas? Thank you!

The error in Awstats:

AWStats did not find any valid log lines that match your LogFormat parameter, in the 50th first non commented lines read of your log.
Your log file C:\WINDOWS\system32\LogFiles\W3SVC1761934906\extend1.log must have a bad format or LogFormat parameter setup does not match this format.

Your AWStats LogFormat parameter is: 2
This means each line in your web server log file need to have "MSIE Extended W3C log format" like this:
date time c-ip c-username cs-method cs-uri-sterm sc-status sc-bytes cs-version cs(User-Agent) cs(Referer)

And this is an example of records AWStats found in your log file (the record number 50 in your log):
2007-08-08 01:29:54 GET /icon/other/he.png - - HTTP/1.1 Mozilla/5.0+(Windows;+U;+Windows+NT+5.1;+en-US;+rv: http://www.OURDOMAINNAME.com/cgi-bin/awstats.pl?framename=mainright&update=1 404 1795

Setup ('D:\websites\OURDOMAINNAME\cgi-bin/awstats.www.OURDOMAINNAME.com.conf' file, web server or permissions) may be wrong.
Check config file, permissions and AWStats documentation (in 'docs' directory).
OAC Technology
OAC Technology
2 Solutions
The default log format for IIS is actually the W3C Extended Log File Format.  This can be confusing since there is also a "Microsoft IIS Log File Format", but that is rarely used.  I would reconfigure AWStats to look for W3C and see if this works.  You can verify what log format you are using by going to the properties of your sites and see what is listed under "Active log format."
The Web log formats offered by default in Awstats do not work, and neither does the W3C.

This question is asked frequently on EE.  See these for other answers:

The main problem is that AWstats requires a bytes value in order to run.  The IIS logs do not have sc-bytes by default.  You can add that to your IIS logs, and use the log format string in the logs output as the custom log format in your AWStats config file.

Or if you have to read old logs which do not have that value, call another number in the log sc-bytes.

Post back if you need help with all of this.

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