Url: http://www.lookoutsoft.com/Lookout/download.html
I just ran across a great new tool for searching my outlook messages.  I have kept messages going back over four years so searching has become a fiasco.  Luckily LookOut for Outlook as come to the rescue.  It is in beta at the moment so I have no idea how much it’ll cost, but so far I am very impressed.  Once it indexed my messages, it was lightning quick.  The indexing in the background didn’t bother my day-to-day operation of Outlook either.  And finally, since it required the .NET framework, I can say that I am glad that it is written in .NET.  Check it out.