[Gary]

This looks like it is down to Microsoft's directory virtualization in Vista and Windows 7.

http://support.microsoft.com/kb/927387

my first thought is that Photoshop is running with Administrator rights, and also launches the Portrait Professional plugin that way. However when Portrait Professional is run stand-alone it doesn't need Administrator rights and so has a different "virtual" directory containing the saved sliders.

you can get to the "saved sliders" directory using the shortcut in the start menu where Portrait Professional is installed.

for more help on this could you open a support ticket on our site where we have a team of support people who can help with your specific problem.

thanks,
Gary