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.NET DiscUtils
.NET Excel Wrapper - Read, Write, Edit & Automate Excel Files in .NET with ease
.NET Image Tools
.NET Micro Framework Toolkit
.NET Terrarium 2.0
32feet.NET
3D Tools for the Windows Presentation Foundation
A Rich Full Featured WPF/SL MVVM Framework
Accountability for .NET
Actipro WPF Controls Contrib
Adaptive Intelligence Open Source .NET Framework
AJAX Control Framework
Ajax.NET Professional
Akon!
ALToolkit
AnyCAD
ApiChange
Application Extensibility Framework
Application Management Library
AppUpdater