Google Desktop Search (GDS) is basically a search program to search your files, e-mails, and web history. This search application is built on the powerful Google search algorithms.
Unlike Microsoft serach, GDS is very fast and more accuarte, so that you can easily find your lost e-mails or web history or whatever. Not only that the SDK packeage also allows you to build your own desktop gadgets and plu-ins. So why dont you download & try GDS out. Its cool & so easy to manage.
For more inormation, visit here. http://desktop.google.com/