Just saw this on the Microsoft Download Center and wanted to mention it in case you missed it.

The Platform Update for Windows 7 enables improved features and performance on Windows 7 SP1 and Windows Server 2008 R2 SP1.

It includes updates to the following components: Direct2D, DirectWrite, Direct3D, Windows Imaging Component (WIC), Windows Advanced Rasterization Platform (WARP), Windows Animation Manager (WAM), XPS Document API , the H.264 Video Decoder and the JPEG XR Codec.

System Requirements are – Windows 7 Service Pack 1 or Windows Server 2008 R2 SP1

The download is available here and if you are running Windows Update it should have been offered as an Important update.