There are two networking options for win4lin. The default is winsock, and the other one is vnet. Both of them require that your linux networking if working first.
If you have setup it with winsock, just try this.
FROM SLACK:
# ifconfig
You should get the info about eth0 and the IP number (e.g 1.2.3.4)
FROM WINDOWS:
- Open a DOS Prompt
- Ping your Linux box IP
C:\>ping 1.2.3.4
If the ping ok, thats mean your winsocknetworking is fine.
VNet need more setup. Tell me if you are not satisfied with the winsock.
By the way, why don't you ask to
www.netraverse.com ?
The have mailing list as well as support forum.