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Developer	Rhys Weatherly (Southern Storm Software Pty), Klaus Treichel, Thong Nguyen, Gopal V, Norbert Bollow
Latest release	0.8.0 / March, 2007
OS	Linux, BSD, Mac OS X, Solaris, AIX, Microsoft Windows, others
Genre	System platform
License	GPL and LGPL
Website	dotgnu.org

DotGNU is a part of the GNU Project that aims to provide a free software replacement for Microsoft's .NET Framework. Other goals of the project are better support for non-Windows platforms and support for more processors.

The main goal of the DotGNU project and the Microsoft Shared Source CLI (Rotor) code base is to provide a class library that is 100% Common Language Specification compliant. In contrast, the main goal of another free software/open source CLI implementation, the Mono Project, is to provide 100% compatible class libraries for both the CLS specification and with the class library currently released by Microsoft for their other proprietary version of .NET, which the DotGNU project claims is not currently fully ECMA CLS compliant.^{[citation needed]}

Contents 1 Main development projects 1.1 Portable.NET 1.2 phpGroupWare 1.3 DGEE 2 Framework architecture 3 Free software 4 See also 5 External links 6 References

DotGNU Portable.NET, an implementation of the Common Language Infrastructure (CLI), includes software to compile and run Visual Basic .NET, C#, and C applications that use the .NET base class libraries, XML, and Windows Forms. Portable.NET claims to support various CPUs including x86, PPC, ARM, and SPARC.

phpGroupWare, a multi-user web-based GroupWare suite, which also serves to provide a collection of webservice components that can be accessed through XML-RPC so that can easily integrate them into webservice applications.

DotGNU Execution Environment (DGEE), a webservice server.

The Portable .NET class library seeks to provide facilities for application development. These are primarily written in C#, but because of the Common Language Specification they can be used by any .NET language. Like .NET, the class library is structured into Namespaces and Assemblies.^[1] It has additional top-level namespaces including Accessibility and DotGNU. In a typical operation, the Portable .NET compiler generates a Common Language Specification (CLS) image, as specified in chapter 6 of ECMA-335, and the Portable .NET runtime takes this image and runs it.

DotGNU is particularly keen to point out that it is free software, and it sets out to ensure that all aspects of DotGNU minimize dependence on proprietary components, such as calls to Microsoft Windows' GUI code. DotGNU is one of the High Priority Free Software Projects.

• .NET Framework

• Project homepage
• Article '2001 -- The Year When DotGNU Was Born'
• A 2003 interview with Norbert Bollow of DotGNU

v • d • e GNU Project
History	GNU Manifesto · GNU Project · Free Software Foundation · History of free software
GNU licences	GNU General Public License · GNU Lesser General Public License · GNU Free Documentation License · GPL linking exception
Software	GNU (Variants) · GNOME · Gnuzilla · IceCat · Gnash · Bash · GCC · GNU Emacs · glibc · Coreutils · GNU build system · Other GNU packages and programs
Speakers	Robert J. Chassell · Loïc Dachary · Ricardo Galli · Georg C. F. Greve · Federico Heinz · Benjamin Mako Hill · Bradley M. Kuhn · Eben Moglen · Brett Smith  · Richard Stallman · John Sullivan

v • d • e .NET Framework
Architecture	Base Class Library · Common Language Infrastructure · .NET assembly · .NET metadata
Common Language Infrastructure	Common Language Runtime · Common Type System · Common Intermediate Language · Virtual Execution System · Dynamic Language Runtime
Common CLI Languages	C# · Visual Basic .NET · C++/CLI (Managed) · J# · JScript .NET
Other CLI Languages	A# · Boo · F#  · IronLisp · IronPython · IronRuby · Nemerle · Phalanger · Windows PowerShell
Windows Foundations	Presentation · Communication · Workflow
Components	ADO.NET (Entity Framework, Data Services)  · ASP.NET (state management, AJAX, MVC, Dynamic Data) · .NET Remoting · Language Integrated Query · Windows CardSpace · Windows Forms · XAML · ClickOnce
Other implementations	Mono · .NET Compact Framework (Xbox 360) · .NET Micro Framework · Portable.NET · Silverlight · Shared Source Common Language Infrastructure
Comparison	C# vs. Java · C# vs. Visual Basic .NET · Comparison of the Java and .NET platforms
Upcoming technologies	Acropolis · Jasper · Parallel FX Library (PLINQ, TPL)