What am I doing wrong?
I am running Evolution 2.2.3 under FC4.
From what I understand, the file type associations used by Evolution are those defined in Gnome. I have an association (created in Nautilus - right click on file - preferences) set up for wmv files, but Evolution doesn't appear to see this link, and just gives 'Save As' as an option. In Nautilus, if I right click on a wmv it does have Totem as the application.
I did have this working on my old laptop, but can't see what's wrong on the one I'm using now.

Any ideas?
PS what file does Eviolution look at to find 'associations'.

Is there any trouble with saving the file before open it ?

No not at all, but if the app is supposed to have additional functionality, then I'm keen to get it working. It works for OO files, images etc, so I would assume it's supposed to work for any file that has an association.