From the windows seven forums:
It's possible to turn off the recent items
in the jumplists of specific programs.
But it's a laborious process. I will
describe it, but you'll have to do the
legwork.
The Jump lists for each program are
stored in
C:\Users(User
name)\AppData\Roaming\Microsoft\Windows\Recent\AutomaticDestinations
as automaticDestination-ms files with
random names.
To figure out which file belongs to
which program , you'll have to do some
detective work.
For instance, you could open a video
with your media player program.
Change the AutomaticDestinations
folder into Detail view and Sort by
Date Modified.
Only one or two of the files should be
showing as modified in the past
minute. One may be a list of recently
viewed folders, the other should be
your program.
Delete one of the files then try to
open your program's jump list. If it
is gone, you have the right file.
Once you have identified the right
file, restore it from recycle bin and
set the file properties to Read-only.
This will disable the jump list for
that file. You'll need to do this for
all the programs you want to exclude
from jump lists.
As you can see, this would be a long
and lengthy process, you'd be better
off creating a password protected
user. Good luck.
A Guy
I hope that helps!
