[Samba] modify only, not deletable

[Joshua, C.S. Chen]

Hi folks,
I have a samba file server joining a Windows 2k AD as member server.
I wonder how I can setup the files on the samba share to be modifiable
by users, but no one can delete them. Is it possible? linux chattr
command doesn't seems to help, and I can only setup windows share
permission (full control, read,write) for the samba files from windows
interface, not NTFS detailed permissions. Any idea?


Cheers
Joshua