Microsoft has released a toolkit package with diagnostic tools for IIS.
The IIS Diagnostics Toolkit is a compiled set of tools aimed at reducing the overall time to resolve problems with Internet Information Services (IIS) products.
The IIS Diagnostics Toolkit is a combined release of popular tools used by today’s IIS users. These tools include tools aimed at resolving problems related to Secure Socket Layer (SSL) issues, permission or security problems, gathering data for your SMTP server included with IIS, as well as the famous Log Parser utility used to sift through hundreds or thousands of log files very quickly.
The toolkit consolidates all the tools into a convienant download and is supplemented by updates every 90-days to ensure that users have the most current diagnostics tools at their fingertips.
It’s available in 3 different version for x86, x64 and ia64.