S>C 0x00 SID_NULL

Transport Layer:Transmission Control Protocol (TCP)
Application Layer:Battle.net v1 TCP Messages (SID)
Message Id:0x00
Message Name:SID_NULL
Direction:Server to Client
Used By:Starcraft Original, Starcraft Broodwar
Starcraft Shareware, Starcraft Japanese
Diablo Retail, Diablo Shareware
Diablo II, Diablo II Lord of Destruction
Warcraft II BNE, Warcraft III Reign of Chaos
Warcraft III The Frozen Throne
Message Format:
(does not include protocol header)
[blank]

Remarks

Keeps the connection alive. Clients do not need to respond to this message.

Kyro

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