X1 Enterprise Client is a desktop search engine that is free for personal use on your home computer. It automatically indexes files, email messages and contacts on your computer and returns instant results for your keyword searches. The results are organized in a tabbed interface, sorted by file type and provide a quick preview for most common file types including images, PDF files, Office files, ZIP files and many other formats. You can directly interact with the results by replying to emails, sending messages to contacts, opening files, playing music and also send any file as email attachment with the click of a button. The program allows you to customize drives and folders, as well as file types that should be included in the index, and the indexing can be performed in the background whenever your PC is no in use. X1 Enterprise Client is free for personal use, a commercial license with Enterprise level network support is also available.