I think as long as you have the same Doom 2 wad file types it should be fine. If you notice in Doomsday some multiplayer games fail to connect because the IWAD is named differently. I have yet to find someone with my same Doom 2 IWAD!
I have always wanted to play Doom 2 multiplayer, so this is awesome!
does any one know if its legal to share the WAD files?i no its legal to share a rom if the sytem is outdated and or is not made n e more. And then Id puts out the source code for everything.
Yes, as fryke says it's still illegal. Even if the company abandons the product for years, they still remain property of the company. This is why you don't find ROMs for emulation applications as easily on the Internet anymore.