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.NET Framework 1.1 and Visual Studio .NET 2003 support ended 20131008 (via: Microsoft Support Lifecycle)

Posted by jpluimers on 2013/11/27

WorPress did it again to me:

2013/10/08; Missed schedule


If you still have a coded base in the .NET Framework 1.1 / Visual Studio 2003, then you should note that after 20131008, the extended support has ended.

Though the introduction of both feels like yesterday to lots of us, they have been supported for more than 10 years. An era has ended. Time to move on to newer versions has passed long ago.

The next important date is about 2.5 years from now: 2016-04-12, when the support for the .NET Framework 2.0 and Visual Studio 2005 ends.

From the Microsoft Support Lifecycle: .NET Framework 1.1 and Microsoft Support Lifecycle: Visual Studio .NET 2003 pages (I formatted the dates into YYYY-MM-DD):

Products Released Lifecycle Start Date Mainstream Support End Date Extended Support End Date Service Pack Support End Date Notes
.NET Framework 1.1 2003-07-10 2008-10-14 2013-08-10 2005-09-09 Support for the .NET Framework components does not imply that support for the hosting Windows operating system is available. Visit the Select a Product for Lifecycle Information site at or the Support Lifecycle Index site at to find the support timelines for your particular Windows operating system.
.NET Framework 1.1 Service Pack 1 2004-09-09 Review Note Review Note Support ends 12 months after the next service pack releases or at the end of the product’s support lifecycle, whichever comes first. For more information, please see the service pack policy at
Visual Studio .NET 2003 Enterprise Architect 2003-07-10 2008-10-14 2013-10-08 2007-10-09
Visual Studio .NET 2003 Enterprise Developer 2003-07-10 2008-10-14 2013-10-08 2007-10-09
Visual Studio .NET 2003 Professional Edition 2003-07-10 2008-10-14 2013-10-08 2007-10-09



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