Returns all versions of the .NET Framework common language runtime that are installed on the client.
Assembly: System.Web (in System.Web.dll)
The method is supported only when the browser is Internet Explorer version 5.0 or later. If the common language runtime is not installed on the client, the property returns an array containing a single Version object with the values 0, 0,-1,-1.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.