They also offer interesting IFilters for ASPX, CHM, MSG, MS Project, Mind Manager, and many more other file types.
Note from the readme file:
In Vista Windows Search and Windows Desktop Search you need to configure a custom temporary directory:
- Open registry key "HKEY_LOCAL_MACHINE\SOFTWARE\IFilterShop\RarFilter"
- Add new String value named "TempPath" and enter the full path to the new temporary directory
- Restart Indexing Service