When I hear "It's one of those things that talks to other instances of itself" I think of a redundant, high-availability database. Oh, I thought of an ancient

When I hear "It's one of those things that talks to other instances of itself" I think of a redundant, high-availability database. Oh, I thought of an ancient copy of Windows for Workgroups taking down the Windows NT 4 domain servers every single day. Real story. But that case was version A crashing version B, not the other way around.