Small update: I've written a powershell script to reproduce the problem
(attached). If you're wondering I'm not using samba see my notes
about it [1].

On the window server:
- Edit $Dir (script will create parent dirs)
- Edit $LimitedUser/$AdminUser to an existing one
- Run the script as admin

On the linux client:
- Mount the share sub dir with the limited user credentials:
  mount //lutze/bug8950/sub/dir' /mnt \
        -o 'domain=LURCH,ip=10.160.5.42,username=bill,password=*****,rw'

My second solution fails for the case when the dir *containing* the
shared dir restricts the limited user. See "HARD MODE" at the end
of the script.

1: http://diobla.info/stuff/bugs/bsc799133/#sec-4

-- 
Aurélien Aptel / SUSE Labs Samba Team
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SUSE Linux GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG
Nürnberg)