Possible to play Steam version of SWBF1 networked with DVD version of SWBF1?

[John 3:14–16]

A friend of mine bought a new computer to replace the broken computer on which he had played Star Wars Battlefront 1 with either a CD or DVD version of the game. His new computer lacks an internal DVD drive.  I have a computer with an internal DVD drive with which I have played SWBF1 with him in the past, using the local-area-network (LAN) mode in conjunction with a virtual private network (VPN).  If he buys SWBF1 at the Steam website, will he be able to use that version to play with me via the LAN mode in conjunction with a VPN?

[{PLA}gdh92]

There's no LAN mode on steam but if you both install the swbfspy patch from here you can play on that. It works with any version but it will replace the steam multiplayer servers.

[Led]

and it is no-cd needed

[John 3:14–16]

Thanks, guys.