Allow scripters to determine whether or not this is a dedicated server or client only build. Note that these should not be abused in scripts! Since the client dll doesn't support running games locally, loading up the lobby isn't going to work when you leave a match (which is the current implementation in the scripts). with this, the scripter could do other things such as loading the title screen, or connecting to a remote lobby server if this happens to be a client only build.
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