Improved media features in Windows Media format runtime, Windows Media Player, Windows Movie Maker, TV/video capture and playback technologies, Windows Media Encoder and introduction of Windows Media Center.Side-by-side assemblies and registration-free COM.Windows XP SP2 introduced Data Execution Prevention, Windows Security Center and Attachment Manager. New security features such as Software Restriction Policies, Credential Manager, Encrypting File System improvements, improved certificate services, smart card and PKI support.New networking features including Windows Firewall, Internet Connection Sharing integration with UPnP, NAT traversal APIs, Quality of Service features, IPv6 and Teredo tunneling, Background Intelligent Transfer Service, extended fax features, network bridging, peer to peer networking, support for most DSL modems, IEEE 802.11 ( Wi-Fi) connections with auto configuration and roaming, TAPI 3.1, Bluetooth and networking over FireWire.Remote Assistance and Remote Desktop features, which allow users to connect to a computer running Windows XP from across a network or the Internet and access their applications, files, printers, and devices or request help.The ClearType font rendering mechanism, which is designed to improve text readability on liquid crystal display (LCD) and similar monitors, especially laptops.Fast user switching, which allows users to save the current state and open applications of their desktop and allows another user to log on without losing that information.Hardware support improvements such as USB 2.0, FireWire 800, Windows Image Acquisition, Media Transfer Protocol, DualView for multi-monitors and audio improvements.A new, arguably more user-friendly interface, including the framework for developing themes for the desktop environment and richer icons with alpha transparency.Numerous improvements to increase the system reliability such as improved System Restore, Automated System Recovery, Windows Error Reporting and driver reliability.The ability to discard a newer device driver in favor of the previous one (known as driver rollback) should a driver upgrade not produce desirable results.
Faster start-up, (due to improved Prefetch functions) logon, logoff, hibernation and application launch sequences.A number of kernel enhancements and power management improvements.Improved imaging features such as Windows Picture and Fax Viewer, improved image handling and thumbnail caching in Explorer.A number of new features in Windows Explorer including task panes, tiles and filmstrip views, improved sorting and grouping, searching by document categories, customizable infotips, built-in CD burning, AutoPlay, Simple File Sharing and WebDAV mini-redirector.DirectX 8.1 upgradeable to DirectX 9.0c.GDI+ graphics subsystem and improved image management and viewing in the shell.Windows XP introduced several new features to the Windows line, including:
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