The RTM release of the Windows SDK for Windows 7 and .NET Framework 3.5 SP1 is now available for download in both ISO and Web Setup format.

Web setup allows you to install a specific subset of the SDK you select without having to download the entire SDK.  The DVD ISO setup allows you to download the entire SDK to install later.  This release of the SDK provides three ISO choices.  Choosethe ISO that matches CPU platform (x86, x64, or Itanium) that you are installing on. Each ISO will allow you to build applications that target all CPU platforms.  Thus if you install the x86 ISO (which only installs on x86 platforms), you will be able to create applications targeting x86, x64, and Itanium.

If you are having problems downloading the correct ISO from the Microsoft Download Center, use these direct links:

• Download the X86 version: GRMSDK_EN_DVD.iso
• Download the AMD64 version: GRMSDKX_EN_DVD.iso
• Download the Itanium version: GRMSDKIAI_EN_DVD.iso

Platform Compatibility:

This release of the Windows SDK is compatible with Windows 7,  Windows Server 2008 R2,  Windows Server 2008, .NET Framework 3.5 Service Pack 1 , Windows Vista, and Windows XP.

Visual Studio Compatibility:

This release of the Windows SDK is compatible with Visual Studio 2008 SP1; including Visual Studio Express Editions.

What’s New:

Please check out the top-level Getting Started section in the SDK documentation for a full description of what’s new in the SDK as well as recent posts to this blog – such as New Win32 Samples in Windows SDK for Windows 7: Windows User Interface or New Tools in Windows SDK for Windows 7.

Source: MSDN blog