From HowToGeek

Application Experience Service allows backward compatibility of older software applications to work with Server 2003 and all editions of Vista without the user having to manually run compatibility mode

Contents 1 Overview 2 System Requirements 3 Related How-To Geek Articles 4 See Also

Overview

This service processes application compatibility cache requests for applications as they are launched. Simply put, old software will work with Windows Vista. This is a new service launched with Windows Server 2003 Service Pack 1. The purpose is to work behind the scenes and look up and apply software updates to the OS so a user does not need to run the application in compatibility mode.

System Requirements

Windows Server 2003 Service Pack 1 or later, Server 2008 and all versions of Vista.

Related How-To Geek Articles

None at this time

See Also

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List of Windows Components v
Features	Windows Aero - System Restore - Previous Versions - SuperFetch - User Account Control (UAC) - Offline Files - ReadyDrive - Instant Search - Windows Sidebar - Parental Controls - Speech Recognition - ClearType - DirectX 10 - ReadyBoost - BitLocker - Flip3D - Remote Desktop - Search Folders - Tablet PC - Windows SideShow
Services	Task Scheduler - Desktop Window Manager - Application Experience - Application Host Helper Service - Application Information - Application Layer Gateway Service - Application Management - Background Intelligent Transfer Service - Base Filtering Engine - Block Level Backup Engine Service - Certificate Propagation - COM+ Event System - Computer Browser - DHCPClient
Applications	Notepad - Windows Mail - Internet Explorer - Command Prompt (Cmd.exe) - Windows Calendar - Mobility Center - Task Manager - Photo Gallery - Windows Media Center - Windows Media Player - Wordpad - Windows Sidebar - Snipping Tool - Windows Contacts - Device Manager - Disk Defragmenter - Event Viewer - Fax and Scan - Windows Journal - Windows Meeting Space - Windows DVD Maker - Windows Easy Transfer
Security	User Account Control (UAC) - Windows Defender - Windows Firewall
Admin Tools	Control Panel - Device Manager - Microsoft Management Console (MMC)