It sounds like a terminal emulation program, which means that you're getting a session on the box, not a mapped connection.
If that box is available on the network then you might be able to use the IP or Machine Name to map the directory containing the dbase file(s).
Try going to a DOS prompt and typing PING <ip address>
It's unlikely though, the reason for terminal emulation prgrams is generally to keep that box secure.
Consider writing an extract from that box to a network resource in some automated fashion.
Then again, you should speak with your IT people about this, you may be able to expose or FTP the DBF locally for reporting.
-k