During installation, Windows XP Setup configures the default system variables, such as the path to the Windows files. You must be an administrator to modify a system environment variable. System environment variables are defined by Windows and apply to all computer users.
Changes to the system environment are written to the registry, and usually require a restart to become effective. Any user can add, modify, or remove a user environment variable. These variables are established by Windows XP Setup, by some programs, and by users.
The changes are written to the registry, and are usually effective immediately. However, after a change to user environment variables is made, any open software programs should be restarted to force them to read the new registry values.
The common reason to add variables is to provide data that is required for variables that you want to use in scripts. To view or change environment variables:. Need more help? Expand your skills. The file-system directory acting as a staging area for files waiting to be written to CD. The virtual folder representing Network Connections that contains network and dial-up connections.
The file-system directory that serves as a common repository for Internet cookies. The file-system directory used to physically store file objects on the desktop, which should not be confused with the desktop folder itself.
The virtual folder representing My Computer that contains everything on the local computer: storage devices, printers, and Control Panel.
The folder may also contain mapped network drives. The file-system directory that serves as a common repository for the user's favorites. The file-system directory that serves as a common repository for temporary Internet files. The file-system directory that serves as a data repository for local, non-roaming applications. The file-system directory that serves as a common repository for music files. The file-system directory that serves as a common repository for image files. The file-system directory that serves as a common repository for video files.
A file-system directory that contains the link objects that may exist in the My Network Places virtual folder. The virtual folder representing the My Documents desktop item. The file-system directory that contains the link objects that can exist in the Printers virtual folder. The file-system directory that contains the user's program groups, which are themselves file-system directories. The file-system directory that contains shortcuts to the user's most recently used documents.
The file-system directory that contains Send To menu items. The file-system directory that contains Start menu items. The file-system directory that corresponds to the user's Startup program group.
Common temporary files to be stored here are desktop themes, Windows error reporting, program caching and Internet browser profiles. The network location of the logon server. In corporate settings, DomainLogonServer is a Windows logon server on the corporate network domain.
List of paths, delimited by a semicolon , to be automatically searched for files. Paths are searched in the order listed. Location of the ProgramData hidden folder, used by some installed programs to store user data. Location of the Program Files directory, the default location of installed programs.
On bit versions of Windows, this directory is the default location of bit programs. The default location of bit programs. This variable is only present in bit versions of Windows. This variable is used by the WOW64 emulation layer, and is only present in bit versions of Windows.
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