Update 4.0.1 for Microsoft .NET Framework 4 - Design-Time Update for Visual Studio 2010 SP1

Describes an update that is available for Visual Studio 2010 SP1. This update adds support for designing and developing applications for the .NET Framework 4 Platform Update 1. This update includes update 2478063, update 2495593, and update 2495638.

from Microsoft Support - Windows XP https://ift.tt/38IwI0V