IIS Log Parser is really just a tool to import a (bunch of) log file(s) into an SQLite database. The only fancy stuff it does is split up combined fields into separate tables, like separate query string parameters, cookies, or ASP error reports. It also tries to preserve all information present in the log files.
There is currently no release available for download. When there is one, it will be available for download here.
This tool is developed in Delphi.
You can browse the source code online, or download it as a zip file, or clone this repository using Fossil.