This doesn't work anymore with modern clients,
and there're better ways to support profiles on a share.
Typically something like this seems to work:
[winprofiles]
comment = Users profiles New
path = /data/winprofiles/
browseable = No
read only = No
csc policy = disable
store dos attributes = yes
vfs objects = acl_xattr
With chmod 1777 on /data/winprofiles/
In order to work around some locking problems, see
https://bugzilla.samba.org/show_bug.cgi?id=12833
It's also useful to something like this in the global
section in order to detect disconnects reliable: