<Li> Support for Email Address Internationalization (EAI) </Li> <P> The release of . NET Framework 4.5. 1 was announced on 17 October 2013 along Visual Studio 2013 . This version requires Windows Vista SP2 and later and is included with Windows 8.1 and Windows Server 2012 R2 . New features of . NET Framework 4.5. 1: </P> <Ul> <Li> Debugger support for X64 edit and continue (EnC) </Li> <Li> Debugger support for seeing managed return values </Li> <Li> Async - aware debugging in the Call Stack and Tasks windows </Li> <Li> Debugger support for analyzing . NET memory dumps (in the Visual Studio Ultimate SKU) </Li> <Li> Tools for . NET developers in the Performance and Diagnostics hub </Li> <Li> Code Analysis UI improvements </Li> <Li> ADO.NET idle connection resiliency </Li> </Ul> <Li> Debugger support for X64 edit and continue (EnC) </Li>

Visual studio 2005 service pack 1 for windows server 2008 r2