gloss_H

H

Hardware Compatibility List (HCL).

A list of compatible hardware and software products maintained by Microsoft, located online at http://www.microsoft.com/hc.

Hardware profiles.

A collection of settings that describe a computer's hardware configuration at different states, usually docked or undocked. They allow a computer to boot up faster and skip unnecessary hardware detection.

Help and Support Center.

A comprehensive help system that integrates system and Internet-based help and consolidates many tools in a single location, including Remote Assistance and System Restore.

HelpAssistant.

A built-in Windows XP user account that is used by the Remote Assistance utility to provide the remote helper with access to the local computer.

HelpServicesGroup.

A built-in Windows XP group account that contains the HelpAssistant user account.

Hibernation.

An optional Windows XP shutdown option that stores a copy of all data and active programs on the local hard disk and powers the computer off. When powered back on, Windows XP presents an option to restore the computer to its previous state by retrieving stored programs and data from the disk.

Hidden share.

A shared drive or folder that is created by appending the $ character to the end of the share name. These shares are not visible to users as they browse the network.

HKEY_CLASSES_ROOT.

A registry root key or hive where information about Windows file associations is stored.

HKEY_CURRENT_CONFIG.

A registry root key or hive where information about the computer's current configuration is stored.

HKEY_CURRENT_USER.

A registry root key or hive where information about the current user is stored.

HKEY_LOCAL_MACHINE.

A registry root key or hive where information that affects the computer and all its users is stored.

HKEY_USERS.

A registry root key or hive where information about every user of the computer is stored.

Hostname.

A unique user-friendly name assigned to each computer on a network.

Hostname.

A Windows XP command that displays a computer's assigned TCP/IP hostname.

Hub.

A network device that connects two or more computers together to create a local area network.

Hung.

An application that has stopped responding yet still continues to consume system resources. Hung applications can be terminated using the Windows Task Manager.

Hypertext Transfer Protocol (HTTP).

A TCP/IP protocol that transfers data between a Web browser and Web server.