First thanks to all that have answered my questions.

The bad news is that I don´t know why this work and before doesn´t.

I´ll going to put my files if someone is interested.

In my PC-box I have a bat file with this "c:\archivos de programa\openvpn\bin\openvpn.exe" --remote SERVERLINUX --dev tunl --ifconfig 10.4.0.1 10.4.0.2 --secret "c:\archivos de programa\openvpn\config\key.txt" --comp-lzo

In the lmhosts an hosts file I have this entry:

10.4.0.2 SERVERLINUX

On the linux side I have this bash file:

#!/bin/sh /usr/local/sbin/openvpn --remote myPCIP --dev tun --ifconfig 10.4.0.2 10.4.0.1 --secret key.txt --comp-lzo --daemon

On the smb.conf file I have this: # Global parameters

[global]

workgroup = GRUPODETRABAJO

netbios name = LINUXSERVER

server string = %h server (Samba %v)

interfaces = 192.168.1.40/24 10.4.0.2/24

encrypt passwords = Yes

printing = bsd

printcap name = /etc/printcap

load printers = yes

debug level = 3

deadtime = 1

socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

os level = 65

preferred master = Yes

domain master = Yes

dns proxy = No

wins support = Yes

invalid users = root

nt acl support = No

Finally from the I have pressed "Start" -> "Run" and typed \10.4.0.2 and All the samba volumens appear

Thanks to all again,

Greetings from Spain, Im happy, things works and today is a Sunny day :-)