If you load pptx files using PowerPoint Viewer 2007 on XP Embedded or Windows Embedded Standard 2009 you will get the following error message:

“This file requires the Compatibility Pack for the 2007 Office system to view its contents”

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The reason for this error message is that PowerPoint Viewer 2007 needs the t2embed.dll located in the Windows\system32 directory.

To solve the error copy the t2embed.dll from a XP Professional system to your embedded system.