WIN7旗舰32位还需要装游戏运行环境吗？

拇指时钟

刚换的电脑，安装的WIN7旗舰32位，对WIN7了解不深，问一下各位朋友，还用像以前XP那样安装游戏运行环境吗？好像以前用XP的时候，在论坛上看过说WIN7这些运行环境软件都已经自带了，不需要装了，是这样吗？
类似这些：
DirectX End-User Runtimes (June 2010)
Microsoft .NET Framework 3.5 Service Pack 1
Microsoft .NET Framework 4 (Standalone Installer)
Microsoft .NET Framework 4 Client Profile (Standalone Installer)
Microsoft XNA Framework Redistributable 4.0
Microsoft Visual C++ 2005 SP1 Redistributable Package (x64)
Microsoft Visual C++ 2005 SP1 Redistributable Package (x86)
Microsoft Visual C++ 2008 SP1 Redistributable Package (x86)
Microsoft Visual C++ 2008 SP1 Redistributable Package (x64)
Microsoft Visual C++ 2010 SP1 Redistributable Package (x64)
Microsoft Visual C++ 2010 SP1 Redistributable Package (x86)
Microsoft Core XML Services (MSXML) 6.0 Service Pack 1
NVIDIA PhysX 9.10.0513
OpenAL 2.0.7.0
Microsoft Games for Windows - LIVE 3.5