Here is a list of all variables with links to the files they belong to:

• INVALID_SOCKET : Network.h
• MAX_MODE_S_ID : XPMPMultiplayer.h
• MIN_MODE_S_ID : XPMPMultiplayer.h
• Optional : XPMPMultiplayer.h
• xpmpData_NewData : XPMPMultiplayer.h
• xpmpData_Unchanged : XPMPMultiplayer.h