Here’s a list of components developed for Windows Vista or during the same development time frame and included in Windows Vista, that have also been made available for installation on Windows XP:
| Component | Notes |
| Windows Internet Explorer 7.0 | Windows Internet Explorer 8.0 is now in beta |
| Windows Media Player 11 | |
| Windows Defender 1.1 | |
| .NET Framework 3.5 | Redistributable download |
| .NET Framework 3.0 | Included in .NET Framework 3.5 |
| Windows Search 4.0 | |
| Remote Desktop Connection 6.1 | RDC 6.1 also included in Window XP SP3 |
| Windows PowerShell 1.0 | Windows PowerShell 2.0 in beta |
| Image Mastering API v2.0 | API for burning images to CD/DVD |
| Windows Script 5.7 | Release notes |
| Link Layer Topology Discovery Responder | makes Windows XP machines visible in the Windows Vista Network Map (KB922120) |
| Compound TCP (CTCP) support | |
| Read-only Domain Controller Compatibility Pack | Required for Active Directory support only |
| Network Access Protection Agent | Included in Windows XP Service Pack 3 |
| Kernel Mode Cryptographic Module | Included in Windows XP Service Pack 3 |
| Black hole router detection | Included in Windows XP Service Pack 3 |
| No product key required during setup | Included in Windows XP Service Pack 3 |
| Windows Live Photo Gallery | Based on Windows Photo Gallery |
| Windows Live Mail | Based on Windows Mail |
| Microsoft Management Console 3.0 | Included in Windows XP Service Pack 3 |
| Silverlight | Based on WPF; Silverlight 2.0 is in beta |
| Virtual PC 2007 | Originally slated to be a feature of Vista called Virtual PC Express |
| Windows Remote Management | An update is available that supports the latest ws-management standard |
| Network Diagnostic Tool | Replicates some of the network troubleshooting functionality available in Windows Vista |
| Peer Name Resolution Protocol (PNRP) version 2.0 | Included in Windows XP Service Pack 3 |
| Windows Imaging Component | Includes RAW and Windows Media Photo codec |
| Windows Rights Management Services Client with Service Pack 2 | |
| XML Paper Specification Essentials Pack | |
| Microsoft Color Control Panel Applet for Windows XP | Not a direct port but Vista includes a Colour Management applet in Control Panel |
| Microsoft Core XML Services 6.0 | Included in Windows XP Service Pack 3 |
| CredSSP Security Service Provider | Included in Windows XP Service Pack 3 |
| Ink Analysis API | Windows XP Tablet PC Edition only |
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Windows Networking Updates (Wireless and PNRP v2)
Windows Imaging Component
Ink Analysis API
Rights Management Services Client
HD Photo/Windows Live Photo Gallery (which supports viewing HD Photo format)
XPS Essentials Pack
Windows Live Mail (Desktop)
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[...] UPDATE (09/12/2007): Updated with the list of applications and components listed here: Windows Vista components available for Windows XP. [...]