diff --git a/components/openmw-mp/Base/BasePlayer.hpp b/components/openmw-mp/Base/BasePlayer.hpp
index 01073c1f2..bafa2a09e 100644
--- a/components/openmw-mp/Base/BasePlayer.hpp
+++ b/components/openmw-mp/Base/BasePlayer.hpp
@@ -195,6 +195,33 @@ namespace mwmp
             std::string data;
         };
 
+        struct GUIWindow
+        {
+            int32_t id;
+            short width, height;
+            enum class WidgetType: int
+            {
+                Button,
+                Editbox,
+                Label,
+                ListBoxActive,
+                ListBoxPassive,
+                Slider
+            };
+
+            struct Widget
+            {
+                WidgetType type;
+                std::string name;
+                bool disabled;
+                short posX, posY;
+                short width, height;
+                std::vector<std::string> data;
+            };
+
+            std::vector<Widget> widgets;
+        };
+
         BasePlayer(RakNet::RakNetGUID guid) : guid(guid)
         {
             inventoryChanges.action = 0;
@@ -219,6 +246,7 @@ namespace mwmp
         GUIMessageBox guiMessageBox;
         int month;
         int day;
+        GUIWindow guiWindow;
         double hour;
 
         AttributeChanges attributeChanges;
diff --git a/components/openmw-mp/Controllers/PlayerPacketController.cpp b/components/openmw-mp/Controllers/PlayerPacketController.cpp
index d155b5066..362dd8c83 100644
--- a/components/openmw-mp/Controllers/PlayerPacketController.cpp
+++ b/components/openmw-mp/Controllers/PlayerPacketController.cpp
@@ -3,6 +3,7 @@
 #include "../Packets/Player/PacketPlayerCharGen.hpp"
 #include "../Packets/Player/PacketHandshake.hpp"
 #include "../Packets/Player/PacketGUIBoxes.hpp"
+#include "../Packets/Player/PacketGUIWindow.hpp"
 #include "../Packets/Player/PacketLoaded.hpp"
 #include "../Packets/Player/PacketGameSettings.hpp"
 #include "../Packets/Player/PacketGameTime.hpp"
@@ -54,6 +55,7 @@ mwmp::PlayerPacketController::PlayerPacketController(RakNet::RakPeerInterface *p
     AddPacket<PacketChatMessage>(&packets, peer);
     AddPacket<PacketHandshake>(&packets, peer);
     AddPacket<PacketGUIBoxes>(&packets, peer);
+    AddPacket<PacketGUIWindow>(&packets, peer);
     AddPacket<PacketLoaded>(&packets, peer);
     AddPacket<PacketGameSettings>(&packets, peer);
     AddPacket<PacketGameTime>(&packets, peer);
@@ -95,7 +97,7 @@ mwmp::PlayerPacketController::PlayerPacketController(RakNet::RakPeerInterface *p
 
 mwmp::PlayerPacket *mwmp::PlayerPacketController::GetPacket(RakNet::MessageID id)
 {
-    return packets[(unsigned char)id].get();
+    return packets[(RakNet::MessageID)id].get();
 }
 
 void mwmp::PlayerPacketController::SetStream(RakNet::BitStream *inStream, RakNet::BitStream *outStream)
diff --git a/components/openmw-mp/Controllers/PlayerPacketController.hpp b/components/openmw-mp/Controllers/PlayerPacketController.hpp
index 4516bfe3d..d143f7df3 100644
--- a/components/openmw-mp/Controllers/PlayerPacketController.hpp
+++ b/components/openmw-mp/Controllers/PlayerPacketController.hpp
@@ -18,7 +18,7 @@ namespace mwmp
 
         bool ContainsPacket(RakNet::MessageID id);
 
-        typedef std::unordered_map<unsigned char, std::unique_ptr<PlayerPacket> > packets_t;
+        typedef std::unordered_map<RakNet::MessageID, std::unique_ptr<PlayerPacket> > packets_t;
     private:
         packets_t packets;
     };
diff --git a/components/openmw-mp/NetworkMessages.hpp b/components/openmw-mp/NetworkMessages.hpp
index 7c4823a15..bd63ace19 100644
--- a/components/openmw-mp/NetworkMessages.hpp
+++ b/components/openmw-mp/NetworkMessages.hpp
@@ -17,6 +17,7 @@ enum GameMessages
     ID_HANDSHAKE,
     ID_LOADED,
     ID_GUI_MESSAGEBOX,
+    ID_GUI_WINDOW,
 
     ID_GAME_TIME,
     ID_GAME_WEATHER,
diff --git a/components/openmw-mp/Packets/Player/PacketGUIWindow.cpp b/components/openmw-mp/Packets/Player/PacketGUIWindow.cpp
new file mode 100644
index 000000000..c2509196f
--- /dev/null
+++ b/components/openmw-mp/Packets/Player/PacketGUIWindow.cpp
@@ -0,0 +1,60 @@
+//
+// Created by koncord on 15.11.17.
+//
+
+#include <components/openmw-mp/NetworkMessages.hpp>
+#include "PacketGUIWindow.hpp"
+
+using namespace mwmp;
+
+PacketGUIWindow::PacketGUIWindow(RakNet::RakPeerInterface *peer) : PlayerPacket(peer)
+{
+
+    packetID = ID_GUI_WINDOW;
+    orderChannel = CHANNEL_SYSTEM;
+}
+
+void PacketGUIWindow::Packet(RakNet::BitStream *bs, bool send)
+{
+    BasePacket::Packet(bs, send);
+
+    RW(player->guiWindow.id, send);
+    RW(player->guiWindow.height, send);
+    RW(player->guiWindow.width, send);
+
+    int32_t size;
+    if (send)
+        size = player->guiWindow.widgets.size();
+    RW(size, send);
+
+    if(!send)
+        player->guiWindow.widgets.resize(size);
+
+
+    for (auto &&widget : player->guiWindow.widgets)
+    {
+        RW(widget.type, send);
+        RW(widget.name, send);
+        RW(widget.posX, send);
+        RW(widget.posY, send);
+
+        if (widget.type != BasePlayer::GUIWindow::WidgetType::Label)
+        {
+            RW(widget.disabled, send);
+
+            if(widget.type != BasePlayer::GUIWindow::WidgetType::Button)
+            {
+                RW(widget.width, send);
+                RW(widget.height, send);
+
+                size = widget.data.size();
+                RW(size, send);
+                if (!send)
+                    widget.data.resize(size);
+                for (auto &&str : widget.data)
+                    RW(str, send);
+            }
+        }
+    }
+
+}
diff --git a/components/openmw-mp/Packets/Player/PacketGUIWindow.hpp b/components/openmw-mp/Packets/Player/PacketGUIWindow.hpp
new file mode 100644
index 000000000..9bd6a340f
--- /dev/null
+++ b/components/openmw-mp/Packets/Player/PacketGUIWindow.hpp
@@ -0,0 +1,19 @@
+//
+// Created by koncord on 15.11.17.
+//
+
+#pragma once
+
+
+#include <components/openmw-mp/Packets/Player/PlayerPacket.hpp>
+
+namespace mwmp
+{
+    class PacketGUIWindow : public PlayerPacket
+    {
+    public:
+        PacketGUIWindow(RakNet::RakPeerInterface *peer);
+
+        virtual void Packet(RakNet::BitStream *bs, bool send);
+    };
+}