Windows 7 users may need to install .NET Framework 4.0 v 30319 to:
: Supports Windows 7 (SP1 recommended), Windows Vista (SP2), and Windows Server versions (2008, 2008 R2). Windows 7 users may need to install
: The "v30319" refers to the specific build of the Common Language Runtime (CLR) included in version 4.0. Official Download & Installation Windows Vista (SP2)