Like the name suggests it starts off by displaying everything – that is all files and folders – of a computer system. It eliminates all files and folders that do not match the search query of the user in the instant the key is pressed. What this means is that thousands of file names and folders will be displayed at the beginning, for example 1.5 million on a Windows XP test system.

Entering characters will reduce that amount drastically so that the required files and folders will be left in the end. To ensure that all files and folders have to be added to the index at start. It might take a minute or two depending on the amount of files. The developer mentions that indexing 1 million files will take around 1 minute. The index will be stored on the computer’s hard drive in the same location that the file was launched from. The one million indexed files and folders take up about 5 Megabytes of hard drive space.

The desktop search tool uses between 50 and 60 Megabytes of computer memory and about the same mount of virtual memory while running. The items can be sorted by name, path, data or size.

The search supports Boolean expressions, wildcards and regular expressions. The faq contains a helpful list of the expressions that can be used in the search.

Another interesting aspect of Everything is that it can launch an HTTP server so that users can search for and download files.

Everything will run on Windows 2000, XP, 2003 and Vista and can locate files and folders on local NTFS volumes.