diff --git a/public/networksystem/inetworksystem.h b/public/networksystem/inetworksystem.h
index 1587fa52..1872365e 100644
--- a/public/networksystem/inetworksystem.h
+++ b/public/networksystem/inetworksystem.h
@@ -73,73 +73,73 @@ abstract_class INetworkSystem : public IAppSystem
 public:
 	virtual void InitGameServer() = 0;
 	virtual void ShutdownGameServer() = 0;
+
 	virtual int CreateSocket( int, int, int, int, int, const char * ) = 0;
 	virtual void OpenSocket( int sock ) = 0;
-	virtual bool IsOpen ( int sock ) = 0;
+	virtual void ConnectSocket( int sock, const netadr_t &adr ) = 0;
+	virtual bool IsSocketOpen( int sock ) = 0;
 	virtual void CloseSocket( int sock ) = 0;
-	virtual void ForceReopenSocket( int sock, int ) = 0;
-	virtual void SetRemoteStreamChannel( int, int ) = 0;
-	virtual void AddExtraSocket( int, const char * ) = 0;
-	virtual void RemoveAllExtraSockets() = 0;
-	
-	virtual int InitPeerToPeerNetworking( IPeerToPeerCallbacks * ) = 0;
-	virtual void ShutdownPeerToPeerNetworking( int sock ) = 0;
-	virtual void TerminatePeerToPeerSockets( int sock ) = 0;
-	virtual void P2PAcceptableConnectionsChanged( ESteamP2PConnectionOwner owner ) = 0;
-	
-	virtual void EnableLoopbackBetweenSockets( int, int ) = 0;
+	virtual void EnableLoopbackBetweenSockets( int sock1, int sock2 ) = 0;
 	virtual void SetDefaultBroadcastPort( int port ) = 0;
-	virtual void RunFrame( double ) = 0;
-	virtual void SendQueuedPackets() = 0;
-	virtual void FlushPeerToPeerChannels( int sock ) = 0;
-	virtual void SleepUntilMessages( int, int ) = 0;
-	virtual void InitPostFork() = 0;
-	virtual void SetSubProcess( bool ) = 0;
-	virtual void SendPacket( INetChannel *netchan, int, const ns_address &adr, const unsigned char *, int, bf_write *, bool, unsigned int ) = 0;
-	virtual void ProcessSocket( int sock, IConnectionlessPacketHandler *handler ) = 0;
-	virtual void ProcessIncomingP2PRequests( ESteamP2PConnectionOwner, ISteamP2PAllowConnection * ) = 0;
-	virtual void PollSocket( int, IConnectionlessPacketHandler * ) = 0;
-	virtual void ProcessSocketMessages( int ) = 0;
-	virtual INetChannel *CreateNetChannel( int, const ns_address *adr, const char *, uint32, uint32 ) = 0;
-	virtual INetChannel *CreateNetChannel( int, const CPeerToPeerAddress &, const char * ) = 0;
+	virtual void PollSocket( int sock, IConnectionlessPacketHandler * ) = 0;
+
+	virtual void unk001() = 0;
+
+	virtual INetChannel *CreateNetChannel( int sock, const ns_address *adr, uint32 steam_handle, const char *, uint32, uint32 ) = 0;
 	virtual void RemoveNetChannel( INetChannel *netchan, bool ) = 0;
-	virtual void RemoveNetChannelByAddress(int, const CPeerToPeerAddress &) = 0;
-	virtual void ListenSocket( int sock, bool ) = 0;
-	virtual void ConnectSocket( int sock , const netadr_t &adr ) = 0;
-	virtual void CloseNetworkSocket( int sock, int ) = 0;
-	virtual void OutOfBandPrintf( int sock, const ns_address &adr, const char *format, ...) = 0;
-	virtual void OutOfBandDelayedPrintf( int sock, const ns_address &adr, unsigned int delay, const char *format, ...) = 0;
-	virtual void SetTime( double time ) = 0;
-	virtual void SetTimeScale( float timeScale ) = 0;
-	virtual double GetNetTime() const = 0;
-	virtual void DescribeSocket( int sock ) = 0;
-	virtual void BufferToBufferCompress( char *, unsigned int *, const char *, unsigned int ) = 0;
-	virtual void BufferToBufferDecompress( char *, unsigned int *, char const *, unsigned int ) = 0;
-	virtual netadr_t& GetPublicAdr() = 0;
-	virtual netadr_t& GetLocalAdr() = 0;
-	virtual float GetFakeLag() = 0;
-	virtual uint16 GetUDPPort( int ) = 0;
-	virtual bool IsSafeFileToDownload( const char *file ) = 0;
-	virtual bool IsValidFileTransferExtension( const char *extension ) = 0;
-	virtual bool CanRedownloadFile( const char *file ) = 0;
-	virtual void AddNetworkConfigChangedCallback( INetworkConfigChanged *callback ) = 0;
-	virtual void RemoveNetworkConfigChangedCallback( INetworkConfigChanged *callback ) = 0;
-	virtual void AddNetworkPacketFilterCallback( INetworkPacketFilter *callback ) = 0;
-	virtual void RemoveNetworkPacketFilterCallback( INetworkPacketFilter *callback ) = 0;
-	virtual void AddNetworkFileDownloadFilter( INetworkFileDownloadFilter *callback ) = 0;
-	virtual void RemoveNetworkFileDownloadFilter( INetworkFileDownloadFilter *callback ) = 0;
-	virtual void AddNetworkFileSendCompletedCallback( INetworkFileSendCompleted *callback ) = 0;
-	virtual void RemoveNetworkFileSendCompletedCallback( INetworkFileSendCompleted *callback ) = 0;
-	virtual void AddNetworkPrepareStartupParamsCallback( INetworkPrepareStartupParams *callback ) = 0;
-	virtual void RemoveNetworkPrepareStartupParamsCallback( INetworkPrepareStartupParams *callback ) = 0;
-	virtual void AddNetworkChannelNotifyCallback( INetworkChannelNotify *callback ) = 0;
-	virtual void RemoveNetworkChannelNotifyCallback( INetworkChannelNotify *callback ) = 0;
+	virtual bool RemoveNetChannelByAddress( int, const ns_address *adr ) = 0;
+
+	virtual void PrintNetworkStats() = 0;
+
+	virtual void unk101() = 0;
+	virtual void unk102() = 0;
+
+	virtual const char *DescribeSocket( int sock ) = 0;
+	virtual bool IsValidSocket( int sock ) = 0;
+
+	virtual void BufferToBufferCompress( uint8 *pDest, int &nDestSize, uint8 *pIn, unsigned int nInSize ) = 0;
+	virtual void BufferToBufferDecompress( uint8 *pDest, int &nDestSize, uint8 *pIn, unsigned int nInSize ) = 0;
+
+	virtual netadr_t &GetPublicAdr() = 0;
+	virtual netadr_t &GetLocalAdr() = 0;
+	virtual float GetFakeLag( int sock ) = 0;
+	virtual uint16 GetUDPPort( int sock ) = 0;
+
+	virtual void unk201() = 0;
+	virtual void unk202() = 0;
+
 	virtual void CloseAllSockets() = 0;
-	virtual int FindSocket( const CUtlStringToken & ) = 0;
+
 	virtual NetScratchBuffer_t *GetScratchBuffer( void ) = 0;
 	virtual void PutScratchBuffer( NetScratchBuffer_t * ) = 0;
-	virtual void ReceivedSteamDatagramTicket( const CMsgSteamDatagramGameServerAuthTicket & ) = 0;
-	virtual void *GetSteamDatagramClient( void ) = 0;
+
+	// Returns SteamNetworkingUtils004 interface
+	virtual void *GetSteamNetworkUtils() = 0;
+
+	// Returns SteamApi SteamNetworkingSockets012 interface
+	virtual void *GetSteamUserNetworkingSockets() = 0;
+
+	// Returns GameServer SteamNetworkingSockets012 interface
+	virtual void *GetSteamGameServerNetworkingSockets() = 0;
+
+	// Returns either User or GameServer SteamNetworkingSockets012 interface
+	virtual void *GetSteamNetworkingSockets() = 0;
+
+	// Returns SteamNetworkingMessages002 interface
+	virtual void *GetSteamNetworkingMessages() = 0;
+
+	virtual void unk301() = 0;
+	virtual void unk302() = 0;
+	virtual void unk303() = 0;
+	virtual void unk304() = 0;
+	virtual void unk305() = 0;
+
+	virtual void InitNetworkSystem() = 0;
+
+	virtual void unk401() = 0;
+	virtual void unk402() = 0;
+
+	virtual ~INetworkSystem() = 0;
 };
 
 DECLARE_TIER2_INTERFACE( INetworkSystem, g_pNetworkSystem );