.NET Framework 3.5

LINQ and enhanced web development

Version 3.5
Size 231 MB
Platform Windows 10
License Freeware
Release Date November 19, 2007
Developer Microsoft Corporation
.NET Framework 3.5 Interface

Key Features

Language Integrated Query (LINQ)
ASP.NET AJAX
Entity Framework
WCF REST support
Enhanced ListView and DataPager controls
Improved debugging and profiling tools

About .NET Framework 3.5

Microsoft .NET Framework 3.5 introduced Language Integrated Query (LINQ), ASP.NET AJAX, and many enhancements to existing technologies. It became the foundation for modern .NET development.

What is .NET Framework?

Microsoft .NET Framework is a software development platform that provides a consistent programming model for building applications that have visually stunning user experiences and seamless communication.

Common Language Runtime (CLR): Manages memory and executes .NET code
Base Class Library: Provides fundamental programming functionality
Language Support: Works with C#, VB.NET, F#, and other .NET languages
Application Models: Supports Windows Forms, WPF, ASP.NET, and more
Security: Built-in security features and code access security

.NET Framework 3.5 is required by many Windows applications to run properly. Without it, .NET applications will display error messages and fail to start.

Why Use Offline Installer?

The offline installer contains all necessary files to install .NET Framework without requiring an internet connection during installation.

No Internet Required: Install even when offline or with slow connections
Faster Installation: No need to download files during installation
Reusable: Install on multiple computers with the same file
Reliable: Less prone to installation failures due to network issues
Complete Package: Includes all components and dependencies

System Requirements for Windows 10

Windows XP SP2, Windows Server 2003 SP1, Windows Vista, or later
.NET Framework 2.0 SP1 and 3.0 SP1 (installed automatically)
Minimum 256 MB RAM (512 MB recommended)
500 MB of available disk space

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Frequently Asked Questions

Microsoft .NET Framework 3.5 introduced Language Integrated Query (LINQ), ASP.NET AJAX, and many enhancements to existing technologies. It became the foundation for modern .NET development. It's required by many Windows applications to run properly.

You need .NET Framework 3.5 if you want to run applications that were built using this version of the .NET Framework. Many software applications require specific versions of .NET Framework to function.

Yes, .NET Framework 3.5 is completely free to download and use. Microsoft provides it at no cost as it's essential for running .NET applications on Windows.

Yes, different versions of .NET Framework can coexist on the same computer. Some versions are in-place updates, while others install side-by-side.

The offline installer contains all necessary files and doesn't require an internet connection during installation. The web installer downloads files during installation and requires an active internet connection.

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Other .NET Framework Versions

.NET Framework 4.7.2

Security and reliability enhancements

April 30, 2018 v4.7.2
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.NET Framework 4.8

The final version of .NET Framework

April 18, 2019 v4.8
Download for Windows 10
.NET Framework 4.8.1

Final update with ARM64 support

August 9, 2022 v4.8.1
Download for Windows 10

Also Available: Browser Installers

Download offline installers for popular web browsers

Google Chrome Logo

Google Chrome

The fast, secure browser from Google

v138.0.7204.51 128.29 MB
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Mozilla Firefox

Fast, private & safe web browser

v140.0.2 69 MB
Microsoft Edge Logo

Microsoft Edge

Fast and secure browser built for modern web

v138.0.3351.65 176 MB