Err ! How ?

I have an app in "c:\Program Files\MyApp" with all the qt dll's and plugins in subdirectors below that.

I created a qt.conf with
[Paths]
Prefix = c:\Program Files\MyApp

and put that in my app directory, but this not picked up. QT insists that plugins should be where they are on my dev machine ie. "c:\Qt\2010.02.1\qt"

whats the problem?

thanks