Microsoft .NET Framework 4 Client Profile (x86 and x64) en Administrator permissions are required to install .NET Framework 4 Client. Contact your administrator. Installation of the .NET Framework 4 Client requires Windows XP SP2, Windows 2003 SP1, Windows Vista, or later. Contact your application vendor. This version of the .NET Framework 4 Client is not supported on an IA-64 operating system. Contact your application vendor. http://go.microsoft.com/fwlink/?linkid=182804 A failure occurred attempting to install the .NET Framework 4 Client.