Dot NET Framework 4.5.1

The Microsoft .NET Framework 4.5.1 is a highly compatible, in-place update to the Microsoft .NET Framework 4 and the Microsoft .NET Framework 4.5. The offline package can be used in situations where the web installer cannot be used due to lack of internet connectivity.

Download Microsoft .NET Framework 4.5.1 (Offline Installer)/(Web Installer)(Developer Pack) for Windows Vista SP2, Windows 7 SP1, Windows 8, Windows Server 2008 SP2 Windows Server 2008 R2 SP1 and Windows Server 2012.
Microsoft .NET Framework 4.5.1
 (Offline Installer) (Web Installer)(Developer Pack) Download Link