Transport Layer:Transmission Control Protocol (TCP)
Application v1 TCP Messages (SID)
Message Id:0x15
Message Name:SID_CHECKAD
Direction:Client to Server
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)
(UINT32) Platform ID
(UINT32) Product ID
(UINT32) ID of last displayed banner
(UINT32) Current time


Requests ad banner information from

Official clients send this packet every 20 seconds (give or take). You do not have to send this at all.

In addition, will not reply unless any of the fields above are updated from the last time you checked. If you have never checked before, will always reply back.



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