http://blogs.msdn.com/mikehall/archive/2006/10/06/Windows-XP-Embedded_3A00_-ImageDiff-Evaluation-available_2E00_.aspxHere's another great reason for you to take part in the Windows XP Embedded Service Pack 2 Feature Pack 2007 Communuty Technology Preview . You can access the Image Difference Engine Evaluation tool via the same Microsoft Connect website as the Featureen-USCommunityServer 2.1 SP1 (Build: 61025.2)