Actually what Google Desktop Search?

Google Desktop Search is a small program and can be downloaded for free, and this program will quickly and easily find the files on your PC are stored on your hard disk. It is most important and wonderful about this program is frees you from having to manually organize and sort your files, emails, and downloads. You no longer have to rethink where the Your PC the information you are looking for is located - in email, file or web page you browse new. At present Google Desktop Search works only with full text in Outlook and Outlook Express email, text, HTML, Word, Excel and PowerPoint files, AOL chat, and web pages viewed through a Internet Explorer. Other files like PDF will probably be added in future versions.