Microsoft have posted updated versions of the HD Photo Plug-ins for Adobe Photoshop Software to the Microsoft Download Center. There are now versions for both Windows and Macintosh OS X.
In addition to the direct links above, you can always find the various HD Photo downloads by going to the Microsoft Download Center at http://www.microsoft.com/downloads and searching for “HD Photo”.
Microsoft, HD Photo Plugin, Plug-ins, Adobe, Photoshop, Software
Source:→ MSDN Blogs