.000 File Extension

Index of cabinet (.CAB) files included in an installation package for a Windows CE device; referenced by the program's installer script and defines the files to be installed.

Cabinet index files also include the application name and publisher, the designated directory path for installation, WinCE software requirements, the cabinet architecture, and other information.

File archive compressed by Microsoft DoubleSpace, an older file compression utility included with MS-DOS; can be decompressed and opened on the fly using MS-DOS with the DBLSPACE.BIN compression subsystem installed.

Disc image format used by Virtual CD 4 and later; similar to an .ISO file, but contains an additional header; typically saved with a corresponding .VC4 file

File created by Indexing Service, a software component of the Windows (operating system|operating system) that creates a searchable file system index from files on the hard drive; contains data that helps Windows perform quicker searches.

000 files are saved with several other types of files that make up the search index. Other types may include .BK1, .BK2, .FID, .HSH, .PS1, and .PS2 files.

The Indexing Service search index is often created in the following directory: C:\System Volume Information\catalog.wci\. The index may also be generated for external volumes connected to the Windows computer, such as flash drives.