[Samba] Problems with Windows7-Clients and Samba-Shares

[Support]

Hi there,

i have an samba-server with several users and several shares and Windows 
7 clients. The logon-script for each user are automatically generated by 
a litte program (called connect.exe) and depending on the username will 
be different network shares connected. These little Visual Basic program 
is on a guest share on the linux server. The logoff from the network 
shares on the Windows 7 clients is realised by a simple "net use * /d 
/yes" so some different users can access their files on the same 
computer. The little programm sends username und password to the server 
and the server creates then the *.bat file with the net use-command to 
connect the shares. To do so the connection uses the linux-server ip 
adress e.g. "\\10.94.1.3\login$\connect.exe" and user nobody as guest. 
The created *.bat file contains the net use commands as 
"\\servername\share" with the username and individual password. If it 
happens that different users log on and off or the same user logs on and 
off windows brings up the following error message: "Error 1219. Multiple 
connections to a server or shared resource by the same user, using more 
than one user name, are not allowed.". But before all shares from other 
users were disconnected with the "net use * /d /yes"-command. At the 
moment we have to restart those windows 7 clients to have the 
possibility to log on again and get the same message after a few log 
on/off again.

It seems that the shares are not completely disconnected and so this 
error appears. Anyone knows a solution to this? It only happens on 
Windows 7 maschines (WinXP an Win2k works without problems) and the 
local users of the Windows 7 clients don't exists as any linux/samba 
users. Do I missed a important setting in the smb.conf which is 
necessarily for Windows 7?

This is my smb.conf global-section:

[global]
workgroup = server28
interfaces = 10.28.7.1
follow symlinks = yes
unix extensions = no
netbios name = server28
security = USER
encrypt passwords = Yes
update encrypted = Yes
os level = 1
preferred master = False
local master = No
domain master = False
map to guest = Bad user
guest account = Nobody

Best Regards,

Sabine