Helo, i am not a list subscriber, so please send messages to edilson@maxihelp.com.br Sorry my bad english. I?m trying to use a Linux box with samba 3.0.4 and one ACUCOBOL application. When I run this application on Windows 98 workstations, it works fine. When I try to run the same application on a Windows 2000 / XP Workstation or Server, the application starts to run, but it stops working. It appears that it is whaiting for a liberation of a file, because the cursor become an hour-glass and when I start then same application on a Windows 98 workstation at the same option, the Windows 2000 workstation starts to run again, but it stops again (I think that when another workstation locks a file). I tried to disable oplocks at samba and at Windows 2000, but it don?t solve the problem When I start running this application whith the data files on a Windows 2000 Server, is works fine. I am using the above smb.conf: [global] workgroup = XXXXX netbios name = yyyyy server string = Linux SMB Server large readwrite = yes max xmit = 65535 dns proxy = no printing = cups local master = no os level = 70 debug level = 1 printcap name = cups security = user add machine script = /usr/sbin/adduser -n -r -g machines -c "Samba machine" -d /dev/null -s /bin/false %u getwd cache = yes max log size = 50 log file = /var/log/samba/%m.log read raw = yes load printers = yes smb passwd file = /etc/samba/smbpasswd write raw = yes socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=8576 SO_RCVBUF=8192 deadtime = 15 client use spnego = yes username map = /etc/samba/smbusers interfaces = 192.168.1.1/255.255.255.0 encrypt passwords = yes winbind use default domain = no oplock break wait time = 10 passdb backend = smbpasswd template shell = /bin/false wins support = yes preferred master = no domain logons = no idmap uid = 16777216-33554431 idmap gid = 16777216-33554431 [print$] path = /var/lib/samba/drivers guest ok = yes browseable = yes read only = yes write list = root [printers] comment = All Printers path = /var/spool/samba browseable = no guest ok = no writable = no printable = yes printer admin = root [apli] comment = Diretorio do Sistema path = /vv/apli valid users = @vila public = no browseable = yes writable = yes printable = no directory mode = 2770 create mask = 0770 create mode = 0770 force create mode = 0770 force directory mode = 2770 force group = vila # veto oplock files = /*.DAT/*.dat/*.DAD/*.dad/ oplocks = no level2 oplocks = no I would appreciate some help. Edilson Carlos Belluomini edilson@maxihelp.com.br