Installed through our safe & fast downloader (more info)
Filehippo

Safe shield iconSafe Downloader

The Safe Downloader downloads the app quickly and securely via FileHippo’s high-speed server, so that a trustworthy origin is ensured.
In addition to virus scans, our editors manually check each download for you.

Advantages of the Safe Downloader

  • Malware protection informs you if your download has installed additional unwanted software.
  • Discover additional software: Test new software that are waiting to be discovered in the downloader.
  • With us you have the choice to accept or skip additional software installs.

Editors' Review · July 17, 2025

WPF and WCF bring power to Windows development

.NET Framework 3.0 expanded the .NET platform with new tools for building service-connected and visually rich Windows applications. Released as an extension to .NET 2.0, it introduced WPF, WCF, WF, and CardSpace—marking a key evolution for developers working on desktop and enterprise projects.

.NET Framework 3.0 introduced foundational technologies for building more dynamic and connected Windows applications. Windows Presentation Foundation (WPF) enabled hardware-accelerated user interfaces with XAML, Direct3D graphics, and built-in support for animation and multimedia. Windows Communication Foundation (WCF) simplified service development through a unified model for creating secure, reliable, and interoperable communication using industry-standard protocols like SOAP and REST.

Visual workflows and rich interfaces

The framework also added Windows Workflow Foundation (WF) for modeling long-running or rule-based business processes, giving developers a way to structure logic visually. All components were layered on top of the existing .NET 2.0 runtime, maintaining full backward compatibility. .NET Framework 3.0 was included with Windows Vista and supported on XP SP2 and Server 2003, with low system requirements and support for multiple programming languages.

Final thoughts

.NET Framework 3.0 added vital technologies for building more dynamic and connected Windows applications. With WPF for UI, WCF for services, and WF for workflow logic, it extended the platform’s reach without altering the core runtime. While it lacks newer features like LINQ or async/await, it remains a milestone release in .NET history, especially for developers working on desktop and enterprise apps within the Windows environment.

Technical

Title
Microsoft .NET Framework 3.0 Service Pack 1 3.5-sp1 for Windows
Requirements
  • Windows 10
  • Windows Vista
  • Windows 7
  • Windows XP
  • Windows 2003
  • Windows 8
Language
English
Available languages
  • German
  • English
  • Spanish
  • French
  • Italian
  • Japanese
  • Polish
  • Chinese
License
Free
Latest update
Author
Microsoft Corporation
SHA-1
84728f9dc0d211bed6839ac63d72c2afd4f2d4e4
Filename
dotnetfx30SP1setup.exe

Program available in other languages



Changelog

We don’t have any change log information yet for version 3.5 SP1 of Microsoft .NET Framework 3.0 Service Pack 1. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.

Can you help?

If you have any changelog info you can share with us, we’d love to hear from you! Head over to our Contact page and let us know.

Explore apps

Related software

Last updated