Advansys RecollX Professional [retired]

If you used Skype chat regularly, RecollX Professional for Skype offered easy history archiving, high speed research and reporting capabilities.  You never had to worry again about having a portable backup of your Skype history or being able to find that critical information buried in a chat from long ago. Used to work with Skype for Windows Desktop 5.x until Skype retired the developer API.