The safest, digitally signed version of the Platform Update is bundled inside the (Release 7.1). During installation, the SDK installer checks for missing Vista components and extracts KB971644 silently.
: Introduces the Windows Portable Devices (WPD) library to facilitate better communication between the OS and external devices.
: Integrated the Direct2D and DirectWrite APIs, which significantly improved text rendering and 2D hardware-accelerated graphics. Windows Imaging Component (WIC)
: Separate versions exist for 32-bit (x86) and 64-bit (x64) systems; you must choose the one matching your OS type.