Added most recent version of unmodified HL2 SDK for Orange Box engine

game/server/plugin_check.cpp

@@ -0,0 +1,30 @@
+//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// This class allows the game dll to control what functions 3rd party plugins can 
+//  call on clients.
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "eiface.h"
+
+//-----------------------------------------------------------------------------
+// Purpose: An implementation 
+//-----------------------------------------------------------------------------
+class CPluginHelpersCheck : public IPluginHelpersCheck
+{
+public:
+	virtual bool CreateMessage( const char *plugin, edict_t *pEntity, DIALOG_TYPE type, KeyValues *data );
+};
+
+CPluginHelpersCheck s_PluginCheck;
+EXPOSE_SINGLE_INTERFACE_GLOBALVAR(CPluginHelpersCheck, IPluginHelpersCheck, INTERFACEVERSION_PLUGINHELPERSCHECK, s_PluginCheck);
+
+bool CPluginHelpersCheck::CreateMessage( const char *plugin, edict_t *pEntity, DIALOG_TYPE type, KeyValues *data )
+{
+	// return false here to disallow a plugin from running this command on this client
+	return true;
+}
+