If you already have PowerPoint Viewer 2003 (or 2007) installed and yet this happens, check the following article for solution.
Unable to open .PPS attachments directly from Windows Mail in Windows Vista:
http://www.winhelponline.com/articles/149/1/
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Regards,
Ramesh Srinivasan, Microsoft MVP [Windows Shell/User]
Windows® Troubleshooting
http://www.winhelponline.com
"Ed" <Ed@discussions.microsoft.com> wrote in message news:7FB46D50-31CE-463E-8B10-213FB6D11CC6@microsoft.com...
My operating system is Vista, I am using Windows Mail and am attempting to
open a Power Point file. I have been unable to do so because I have to
Create an association in the Set Associations control panel. Where do I find
the Set Associations control panel?