Using Log Parser with SharePoint - Todd Klindt's Blog

....I've bolded the parts I added for the output. I added –o:XML to tell LogParser.exe to use the XML output and INTO out.xml tells LogParser.exe the filename. The LogParser help file has all of the output types. Using template files (TPL in the help) you can specify unsupported types like HTML.
These examples were catered to an Internet site, but they could be altered to be used on internal sites as well. Like I mentioned before, you could use it to see which authenticated users are hitting which sites. I hope this has helped. I know how much managers and bosses love pretty charts and graphs.
tk Posted by Todd O. Klindt Using Log Parser with SharePoint - Todd Klindt's Blog