Airbear Software has just released an API to Google Desktop, a free tool from Google to search your own computer. In short, the API allows access to Google Desktop through the command line. Results are outputted to a file formatted with either XML, CSV, or custom formatting. The API is implemented through Airbear Software's popular Google Desktop add-on, gdSuite, so the API also adds advanced search options to Google Desktop. Although the API is and will probably remain free, any developers wishing to use the API in their software must contact Airbear Software for permission and the redistributable version.
Google Desktop Search allows you to instantly find emails (from Outlook and Outlook Express), chats (in AOL and AOL Instant Message [AIM]), and web pages you've viewed in Internet Explorer. In addition, you can find any file by filename and can search inside Microsoft Word, Excel, and Powerpoint files. However, before gdSuite and this API, users could only search from their web browsers.
Download: API Development Kit
View: API Documentation
View: Google Desktop Home Page