diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6a51338..f7d699c 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,8 @@ if (WIN32)
     endif()
 endif()
 
+target_compile_definitions(${PROJECT_NAME} PRIVATE CR_EXPORTING)
+
 target_include_directories(${PROJECT_NAME} PRIVATE ${ixwebsocket_SOURCE_DIR})
 target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_SOURCE_DIR}/ext/cereal/include")
 
diff --git a/src/defs.hpp b/src/defs.hpp
new file mode 100644
index 0000000..e81459f
--- /dev/null
+++ b/src/defs.hpp
@@ -0,0 +1,9 @@
+#ifdef GEODE_IS_WINDOWS
+    #ifdef CR_EXPORTING
+        #define CR_DLL __declspec(dllexport)
+    #else
+        #define CR_DLL __declspec(dllimport)
+    #endif
+#else
+    #define CR_DLL
+#endif
\ No newline at end of file
diff --git a/src/layers/Lobby.hpp b/src/layers/Lobby.hpp
index 0266ea4..3487afb 100755
--- a/src/layers/Lobby.hpp
+++ b/src/layers/Lobby.hpp
@@ -1,9 +1,11 @@
 #include <Geode/Geode.hpp>
 #include <types/lobby.hpp>
 
+#include <defs.hpp>
+
 using namespace geode::prelude;
 
-class PlayerCell : public CCLayer {
+class CR_DLL PlayerCell : public CCLayer {
 protected:
     Account m_account;
 
@@ -14,7 +16,7 @@ class PlayerCell : public CCLayer {
     static PlayerCell* create(Account account, float width, bool canKick);
 };
 
-class LobbyLayer : public CCLayer {
+class CR_DLL LobbyLayer : public CCLayer {
 protected:
     std::string lobbyCode;
     bool isOwner = false;
diff --git a/src/layers/LobbySelectPopup.hpp b/src/layers/LobbySelectPopup.hpp
index 7c98599..1828e44 100755
--- a/src/layers/LobbySelectPopup.hpp
+++ b/src/layers/LobbySelectPopup.hpp
@@ -1,9 +1,10 @@
 #pragma once
 #include <Geode/Geode.hpp>
+#include <defs.hpp>
 
 using namespace geode::prelude;
 
-class LobbySelectPopup : public geode::Popup<> {
+class CR_DLL LobbySelectPopup : public geode::Popup<> {
 protected:
     Border* lobbyList;
 
diff --git a/src/managers/AuthManager.hpp b/src/managers/AuthManager.hpp
index 01e01cd..ef6e82d 100755
--- a/src/managers/AuthManager.hpp
+++ b/src/managers/AuthManager.hpp
@@ -4,9 +4,11 @@
 #include <network/packets/client.hpp>
 #include <network/packets/server.hpp>
 
+#include <defs.hpp>
+
 using namespace geode::prelude;
 
-class AuthManager : public UploadMessageDelegate {
+class CR_DLL AuthManager : public UploadMessageDelegate {
 public:
     static AuthManager& get() {
         static AuthManager instance;
diff --git a/src/managers/SwapManager.hpp b/src/managers/SwapManager.hpp
index 3c58d1b..704d9d8 100755
--- a/src/managers/SwapManager.hpp
+++ b/src/managers/SwapManager.hpp
@@ -5,7 +5,9 @@
 #include <network/packets/client.hpp>
 #include <network/packets/server.hpp>
 
-class SwapManager {
+#include <defs.hpp>
+
+class CR_DLL SwapManager {
 public:
     static SwapManager& get() {
         static SwapManager instance;
diff --git a/src/network/manager.hpp b/src/network/manager.hpp
index 0ec0dbd..f6e1952 100755
--- a/src/network/manager.hpp
+++ b/src/network/manager.hpp
@@ -10,12 +10,15 @@
 
 #include <Geode/Geode.hpp>
 #include <matjson.hpp>
+
+#include <defs.hpp>
+
 using namespace geode::prelude;
 
 using DisconnectCallback = std::function<void(std::string)>;
 using MiddlewareCb = std::function<void(std::function<void()> callback)>;
 
-class NetworkManager : public CCObject {
+class CR_DLL NetworkManager : public CCObject {
 public:
     static NetworkManager& get() {
         static NetworkManager instance;
diff --git a/src/network/packets/packet.hpp b/src/network/packets/packet.hpp
index 4cc4ef6..44f9271 100755
--- a/src/network/packets/packet.hpp
+++ b/src/network/packets/packet.hpp
@@ -2,6 +2,8 @@
 #include <string>
 #include <serialization.hpp>
 
+#include <defs.hpp>
+
 #define CR_ARGS(...) __VA_ARGS__
 
 #define CR_PACKET(id, name) \
@@ -19,7 +21,7 @@
         } \
         name() {}
 
-class Packet {
+class CR_DLL Packet {
 public:
     static const int PACKET_ID = 0000;