TCP/IP hosted. Mods aren't usable on Closed B.Net and I'm not sure about Open.
I do mostly hosting and not Open because of "problems." I bought my copy of Diablo 2 in the chest with LoD and the guides but not everyone I play with has a "proper" game so I decided a while ago just to do hosting so I wouldn't have to worry about those issues.
The mod is fully compatible with v1.12 so it's just a matter of swapping patch_d2.mpq back and forth.
Also no known editor works for it (AFAIK). Udie worked with Median 2008 but not with XL. Kind of annoying on some level but it means that you generally won't have to worry about someone cheating... more or less I guess.







