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Log Parser is a free, closed-source Windows utility for parsing through many different types of logs using SQL like queries. It can change the input to a different type of output to easily create reports or charts with large data sets.

Available here:
http://www.microsoft.com/technet/scriptcenter/tools/logparser/default.mspx

Official forum:
http://forums.iis.net/default.aspx?GroupID=51

BackTrack is a free, live Linux operating system with over 300 of the best security penetration testing tools built in. It is neatly organized by category to quickly locate any tool and covers an extremely wide array of applications.

Download available at:

http://www.remote-exploit.org/backtrack.html