diff --git a/CMakeLists.txt b/CMakeLists.txt
index 166edb00..200ceab5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -162,73 +162,86 @@ set(CEF_PRECOMPILED_BINARIES_DIR "${SOURCE_DIR}/Release")
 # General Settings
 ##############################
 
-set (LOOT_SRC   "${CMAKE_BINARY_DIR}/generated/loot_version.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/error_categories.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/condition_evaluator.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/conditional_metadata.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/file.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/location.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/message.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/message_content.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/plugin_cleaning_data.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/plugin_metadata.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/priority.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/tag.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/game/game.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/game/game_cache.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/game/load_order_handler.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata_list.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/masterlist.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin_sorter.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/crc.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/git_helper.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/language.cpp"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/version.cpp")
 
-set (LOOT_HEADERS "${CMAKE_SOURCE_DIR}/src/backend/metadata/condition_evaluator.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata/condition_grammar.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/game/game.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/game/game_cache.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/game/load_order_handler.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/metadata_list.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/masterlist.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin_sorter.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/git_helper.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/crc.h"
-                "${CMAKE_SOURCE_DIR}/src/backend/helpers/version.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/api_decorator.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/exception/error_categories.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/exception/condition_syntax_error.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/exception/cyclic_interaction_error.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/exception/file_access_error.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/exception/game_detection_error.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/exception/git_state_error.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/enum/game_type.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/enum/language_code.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/enum/message_type.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/conditional_metadata.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/file.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/location.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/message.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/message_content.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/plugin_cleaning_data.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/plugin_metadata.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/priority.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/metadata/tag.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/file.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/location.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/message.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/message_content.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/plugin_cleaning_data.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/plugin_metadata.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/set.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/yaml/tag.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/windows_encoding_converters.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/language.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/loot_version.h"
-                "${CMAKE_SOURCE_DIR}/include/loot/plugin_interface.h")
+set (LOOT_API_SRC "${CMAKE_BINARY_DIR}/generated/loot_version.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/api/api.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/api/api_database.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/api/game.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/error_categories.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/condition_evaluator.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/conditional_metadata.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/file.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/location.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/message.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/message_content.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/plugin_cleaning_data.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/plugin_metadata.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/priority.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata/tag.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/game/game.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/game/game_cache.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/game/load_order_handler.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/metadata_list.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/masterlist.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin_sorter.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/helpers/crc.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/helpers/git_helper.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/helpers/language.cpp"
+                  "${CMAKE_SOURCE_DIR}/src/backend/helpers/version.cpp")
+
+set (LOOT_API_HEADERS "${CMAKE_SOURCE_DIR}/include/loot/api.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/api_decorator.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/database_interface.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/exception/error_categories.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/exception/condition_syntax_error.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/exception/cyclic_interaction_error.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/exception/file_access_error.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/exception/game_detection_error.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/exception/git_state_error.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/enum/game_type.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/enum/language_code.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/enum/message_type.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/enum/plugin_cleanliness.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/game_interface.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/language.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/loot_version.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/conditional_metadata.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/file.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/location.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/message.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/message_content.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/plugin_cleaning_data.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/plugin_metadata.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/priority.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/metadata/tag.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/file.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/location.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/message.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/message_content.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/plugin_cleaning_data.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/plugin_metadata.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/set.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/yaml/tag.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/plugin_interface.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/struct/masterlist_info.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/struct/plugin_tags.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/struct/simple_message.h"
+                      "${CMAKE_SOURCE_DIR}/include/loot/windows_encoding_converters.h"
+                      "${CMAKE_SOURCE_DIR}/src/api/api_database.h"
+                      "${CMAKE_SOURCE_DIR}/src/api/game.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/metadata/condition_evaluator.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/metadata/condition_grammar.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/game/game.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/game/game_cache.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/game/load_order_handler.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/metadata_list.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/masterlist.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/plugin/plugin_sorter.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/helpers/git_helper.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/helpers/crc.h"
+                      "${CMAKE_SOURCE_DIR}/src/backend/helpers/version.h")
 
 set (LOOT_GUI_SRC "${CMAKE_SOURCE_DIR}/src/gui/main.cpp"
                   "${CMAKE_SOURCE_DIR}/src/gui/helpers.cpp"
@@ -288,33 +301,6 @@ set (LOOT_GUI_HEADERS "${CMAKE_SOURCE_DIR}/src/gui/editor_message.h"
                   "${CMAKE_SOURCE_DIR}/src/gui/resource.h"
                   "${CMAKE_SOURCE_DIR}/src/gui/yaml_simple_message_helpers.h")
 
-set (LOOT_API_SRC "${CMAKE_BINARY_DIR}/generated/loot_version.cpp"
-                  "${CMAKE_SOURCE_DIR}/src/api/api.cpp"
-                  "${CMAKE_SOURCE_DIR}/src/api/api_database.cpp"
-                  "${CMAKE_SOURCE_DIR}/src/api/game.cpp")
-
-set (LOOT_API_HEADERS "${CMAKE_SOURCE_DIR}/include/loot/api.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/api_decorator.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/database_interface.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/exception/error_categories.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/exception/condition_syntax_error.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/exception/cyclic_interaction_error.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/exception/file_access_error.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/exception/game_detection_error.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/exception/git_state_error.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/enum/game_type.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/enum/language_code.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/game_interface.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/loot_version.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/plugin_interface.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/struct/masterlist_info.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/enum/message_type.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/enum/plugin_cleanliness.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/struct/plugin_tags.h"
-                      "${CMAKE_SOURCE_DIR}/include/loot/struct/simple_message.h"
-                      "${CMAKE_SOURCE_DIR}/src/api/api_database.h"
-                      "${CMAKE_SOURCE_DIR}/src/api/game.h")
-
 set (LOOT_TESTS_SRC "${CMAKE_SOURCE_DIR}/src/tests/backend/main.cpp")
 
 set (LOOT_TESTS_HEADERS "${CMAKE_SOURCE_DIR}/src/tests/backend/game/game_test.h"
@@ -370,14 +356,12 @@ set (LOOT_GUI_TESTS_HEADERS "${CMAKE_SOURCE_DIR}/src/gui/state/game.h"
                             "${CMAKE_SOURCE_DIR}/src/tests/gui/state/loot_settings_test.h"
                             "${CMAKE_SOURCE_DIR}/src/tests/gui/state/loot_state_test.h")
 
-source_group("Header Files\\backend" FILES ${LOOT_HEADERS})
 source_group("Header Files\\gui" FILES ${LOOT_GUI_HEADERS})
 source_group("Header Files\\api" FILES ${LOOT_API_HEADERS})
 source_group("Header Files\\tests" FILES ${LOOT_TESTS_HEADERS})
 source_group("Header Files\\tests" FILES ${LOOT_API_TESTS_HEADERS})
 source_group("Header Files\\tests" FILES ${LOOT_GUI_TESTS_HEADERS})
 
-source_group("Source Files\\backend" FILES ${LOOT_SRC})
 source_group("Source Files\\gui" FILES ${LOOT_GUI_SRC})
 source_group("Source Files\\api" FILES ${LOOT_API_SRC})
 source_group("Source Files\\tests" FILES ${LOOT_TESTS_SRC})
@@ -451,20 +435,15 @@ ENDIF ()
 # Define Targets
 ##############################
 
-# Common library.
-add_library          (loot_common STATIC ${LOOT_SRC} ${LOOT_HEADERS})
-add_dependencies     (loot_common libespm libgit2 libloadorder pseudosem yaml-cpp)
-target_link_libraries(loot_common ${Boost_LIBRARIES} ${LIBGIT2_LIBRARIES} ${LIBLOADORDER_LIBRARIES} ${LOOT_LIBS} ${YAML_CPP_LIBRARIES})
-
 # Build tests.
-add_executable       (tests ${LOOT_TESTS_SRC} ${LOOT_TESTS_HEADERS})
-add_dependencies     (tests loot_common GTest testing-metadata testing-plugins)
-target_link_libraries(tests loot_common ${GTEST_LIBRARIES} ${LIBLOADORDER_LIBRARIES})
+add_executable       (tests ${LOOT_API_SRC} ${LOOT_API_HEADERS} ${LOOT_TESTS_SRC} ${LOOT_TESTS_HEADERS})
+add_dependencies     (tests libespm libgit2 libloadorder pseudosem yaml-cpp GTest testing-metadata testing-plugins)
+target_link_libraries(tests ${Boost_LIBRARIES} ${LIBGIT2_LIBRARIES} ${LIBLOADORDER_LIBRARIES} ${LOOT_LIBS} ${YAML_CPP_LIBRARIES} ${GTEST_LIBRARIES} ${LIBLOADORDER_LIBRARIES})
 
 # Build API.
 add_library          (loot_api ${LOOT_API_SRC} ${LOOT_API_HEADERS})
-add_dependencies     (loot_api loot_common)
-target_link_libraries(loot_api loot_common)
+add_dependencies     (loot_api libespm libgit2 libloadorder pseudosem yaml-cpp)
+target_link_libraries(loot_api ${Boost_LIBRARIES} ${LIBGIT2_LIBRARIES} ${LIBLOADORDER_LIBRARIES} ${LOOT_LIBS} ${YAML_CPP_LIBRARIES})
 
 # Build API tests.
 add_executable       (api-tests ${LOOT_API_TESTS_SRC} ${LOOT_API_TESTS_HEADERS})
@@ -496,7 +475,6 @@ ENDIF ()
 
 
 IF (CMAKE_SYSTEM_NAME MATCHES "Windows")
-    set_target_properties (loot_common PROPERTIES COMPILE_DEFINITIONS "${COMPILE_DEFINITIONS} LOOT_STATIC")
     set_target_properties (tests PROPERTIES COMPILE_DEFINITIONS "${COMPILE_DEFINITIONS} LOOT_STATIC")
     IF (BUILD_SHARED_LIBS)
         set_target_properties (loot_api PROPERTIES COMPILE_DEFINITIONS "${COMPILE_DEFINITIONS} LOOT_EXPORT")
diff --git a/include/loot/language.h b/include/loot/language.h
index 918f8b94..f8aea71f 100644
--- a/include/loot/language.h
+++ b/include/loot/language.h
@@ -28,20 +28,20 @@
 #include <string>
 #include <vector>
 
+#include "loot/api_decorator.h"
 #include "loot/enum/language_code.h"
 
 namespace loot {
 class Language {
 public:
+  LOOT_API static const std::vector<LanguageCode> codes;
 
-  static const std::vector<LanguageCode> codes;
+  LOOT_API Language(const LanguageCode code);
+  LOOT_API Language(const std::string& locale);
 
-  Language(const LanguageCode code);
-  Language(const std::string& locale);
-
-  LanguageCode GetCode() const;
-  std::string GetName() const;
-  std::string GetLocale() const;
+  LOOT_API LanguageCode GetCode() const;
+  LOOT_API std::string GetName() const;
+  LOOT_API std::string GetLocale() const;
 private:
   static LanguageCode GetCode(const std::string& locale);
 
diff --git a/include/loot/metadata/conditional_metadata.h b/include/loot/metadata/conditional_metadata.h
index 05c69904..c76e456b 100644
--- a/include/loot/metadata/conditional_metadata.h
+++ b/include/loot/metadata/conditional_metadata.h
@@ -26,16 +26,18 @@
 
 #include <string>
 
+#include "loot/api_decorator.h"
+
 namespace loot {
 class ConditionalMetadata {
 public:
-  ConditionalMetadata();
-  ConditionalMetadata(const std::string& condition);
+  LOOT_API ConditionalMetadata();
+  LOOT_API ConditionalMetadata(const std::string& condition);
 
-  bool IsConditional() const;
-  void ParseCondition() const;
+  LOOT_API bool IsConditional() const;
+  LOOT_API void ParseCondition() const;
 
-  std::string Condition() const;
+  LOOT_API std::string Condition() const;
 private:
   std::string condition_;
 };
diff --git a/include/loot/metadata/file.h b/include/loot/metadata/file.h
index c6082f9e..4dea2466 100644
--- a/include/loot/metadata/file.h
+++ b/include/loot/metadata/file.h
@@ -26,20 +26,21 @@
 
 #include <string>
 
+#include "loot/api_decorator.h"
 #include "loot/metadata/conditional_metadata.h"
 
 namespace loot {
 class File : public ConditionalMetadata {
 public:
-  File();
-  File(const std::string& name, const std::string& display = "",
-       const std::string& condition = "");
+  LOOT_API File();
+  LOOT_API File(const std::string& name, const std::string& display = "",
+                const std::string& condition = "");
 
-  bool operator < (const File& rhs) const;
-  bool operator == (const File& rhs) const;
+  LOOT_API bool operator < (const File& rhs) const;
+  LOOT_API bool operator == (const File& rhs) const;
 
-  std::string Name() const;
-  std::string DisplayName() const;
+  LOOT_API std::string Name() const;
+  LOOT_API std::string DisplayName() const;
 private:
   std::string name_;
   std::string display_;
diff --git a/include/loot/metadata/location.h b/include/loot/metadata/location.h
index 39af217f..aafb9f38 100644
--- a/include/loot/metadata/location.h
+++ b/include/loot/metadata/location.h
@@ -27,17 +27,19 @@
 #include <string>
 #include <vector>
 
+#include "loot/api_decorator.h"
+
 namespace loot {
 class Location {
 public:
-  Location();
-  Location(const std::string& url, const std::string& name = "");
+  LOOT_API Location();
+  LOOT_API Location(const std::string& url, const std::string& name = "");
 
-  bool operator < (const Location& rhs) const;
-  bool operator == (const Location& rhs) const;
+  LOOT_API bool operator < (const Location& rhs) const;
+  LOOT_API bool operator == (const Location& rhs) const;
 
-  std::string URL() const;
-  std::string Name() const;
+  LOOT_API std::string URL() const;
+  LOOT_API std::string Name() const;
 private:
   std::string url_;
   std::string name_;
diff --git a/include/loot/metadata/message.h b/include/loot/metadata/message.h
index a72b1774..7caae54c 100644
--- a/include/loot/metadata/message.h
+++ b/include/loot/metadata/message.h
@@ -27,6 +27,7 @@
 #include <string>
 #include <vector>
 
+#include "loot/api_decorator.h"
 #include "loot/metadata/conditional_metadata.h"
 #include "loot/metadata/message_content.h"
 #include "loot/enum/language_code.h"
@@ -36,20 +37,20 @@
 namespace loot {
 class Message : public ConditionalMetadata {
 public:
-  Message();
-  Message(const MessageType type, const std::string& content,
-          const std::string& condition = "");
-  Message(const MessageType type, const std::vector<MessageContent>& content,
-          const std::string& condition = "");
+  LOOT_API Message();
+  LOOT_API Message(const MessageType type, const std::string& content,
+                   const std::string& condition = "");
+  LOOT_API Message(const MessageType type, const std::vector<MessageContent>& content,
+                   const std::string& condition = "");
 
-  bool operator < (const Message& rhs) const;
-  bool operator == (const Message& rhs) const;
+  LOOT_API bool operator < (const Message& rhs) const;
+  LOOT_API bool operator == (const Message& rhs) const;
 
-  MessageType GetType() const;
-  std::vector<MessageContent> GetContent() const;
-  MessageContent GetContent(const LanguageCode language) const;
+  LOOT_API MessageType GetType() const;
+  LOOT_API std::vector<MessageContent> GetContent() const;
+  LOOT_API MessageContent GetContent(const LanguageCode language) const;
 
-  SimpleMessage ToSimpleMessage(const LanguageCode language) const;
+  LOOT_API SimpleMessage ToSimpleMessage(const LanguageCode language) const;
 private:
   MessageType type_;
   std::vector<MessageContent> content_;
diff --git a/include/loot/metadata/message_content.h b/include/loot/metadata/message_content.h
index 276ed07c..63d00599 100644
--- a/include/loot/metadata/message_content.h
+++ b/include/loot/metadata/message_content.h
@@ -26,22 +26,23 @@
 
 #include <string>
 
+#include "loot/api_decorator.h"
 #include "loot/language.h"
 
 namespace loot {
 class MessageContent {
 public:
-  MessageContent();
-  MessageContent(const std::string& text, const LanguageCode language);
+  LOOT_API MessageContent();
+  LOOT_API MessageContent(const std::string& text, const LanguageCode language);
 
-  std::string GetText() const;
-  LanguageCode GetLanguage() const;
+  LOOT_API std::string GetText() const;
+  LOOT_API LanguageCode GetLanguage() const;
 
-  bool operator < (const MessageContent& rhs) const;
-  bool operator == (const MessageContent& rhs) const;
+  LOOT_API bool operator < (const MessageContent& rhs) const;
+  LOOT_API bool operator == (const MessageContent& rhs) const;
 
-  static MessageContent Choose(const std::vector<MessageContent> content,
-                               const LanguageCode language);
+  LOOT_API static MessageContent Choose(const std::vector<MessageContent> content,
+                                        const LanguageCode language);
 private:
   std::string text_;
   LanguageCode language_;
diff --git a/include/loot/metadata/plugin_cleaning_data.h b/include/loot/metadata/plugin_cleaning_data.h
index 9686cdc4..8c800aa0 100644
--- a/include/loot/metadata/plugin_cleaning_data.h
+++ b/include/loot/metadata/plugin_cleaning_data.h
@@ -28,32 +28,33 @@
 #include <cstdint>
 #include <string>
 
+#include "loot/api_decorator.h"
 #include "loot/metadata/message.h"
 
 namespace loot {
 class PluginCleaningData {
 public:
-  PluginCleaningData();
-  PluginCleaningData(uint32_t crc, const std::string& utility);
-  PluginCleaningData(uint32_t crc,
-                     const std::string& utility,
-                     const std::vector<MessageContent>& info,
-                     unsigned int itm,
-                     unsigned int ref,
-                     unsigned int nav);
+  LOOT_API PluginCleaningData();
+  LOOT_API PluginCleaningData(uint32_t crc, const std::string& utility);
+  LOOT_API PluginCleaningData(uint32_t crc,
+                              const std::string& utility,
+                              const std::vector<MessageContent>& info,
+                              unsigned int itm,
+                              unsigned int ref,
+                              unsigned int nav);
 
-  bool operator < (const PluginCleaningData& rhs) const;
-  bool operator == (const PluginCleaningData& rhs) const;
+  LOOT_API bool operator < (const PluginCleaningData& rhs) const;
+  LOOT_API bool operator == (const PluginCleaningData& rhs) const;
 
-  uint32_t CRC() const;
-  unsigned int ITMs() const;
-  unsigned int DeletedRefs() const;
-  unsigned int DeletedNavmeshes() const;
-  std::string CleaningUtility() const;
-  std::vector<MessageContent> Info() const;
+  LOOT_API uint32_t CRC() const;
+  LOOT_API unsigned int ITMs() const;
+  LOOT_API unsigned int DeletedRefs() const;
+  LOOT_API unsigned int DeletedNavmeshes() const;
+  LOOT_API std::string CleaningUtility() const;
+  LOOT_API std::vector<MessageContent> Info() const;
 
-  MessageContent ChooseInfo(const LanguageCode language) const;
-  Message AsMessage() const;
+  LOOT_API MessageContent ChooseInfo(const LanguageCode language) const;
+  LOOT_API Message AsMessage() const;
 private:
   uint32_t crc_;
   unsigned int itm_;
diff --git a/include/loot/metadata/plugin_metadata.h b/include/loot/metadata/plugin_metadata.h
index b7bbc3bd..90f377fa 100644
--- a/include/loot/metadata/plugin_metadata.h
+++ b/include/loot/metadata/plugin_metadata.h
@@ -31,6 +31,7 @@
 #include <string>
 #include <vector>
 
+#include "loot/api_decorator.h"
 #include "loot/yaml/set.h"
 #include "loot/metadata/file.h"
 #include "loot/metadata/location.h"
@@ -42,56 +43,56 @@
 namespace loot {
 class PluginMetadata {
 public:
-  PluginMetadata();
-  PluginMetadata(const std::string& name);
+  LOOT_API PluginMetadata();
+  LOOT_API PluginMetadata(const std::string& name);
 
   //Merges from the given plugin into this one, unless there is already equal metadata present.
   //For 'enabled' and 'priority' metadata, use the given plugin's values, but if the 'priority' user value is zero, ignore it.
-  void MergeMetadata(const PluginMetadata& plugin);
+  LOOT_API void MergeMetadata(const PluginMetadata& plugin);
 
   // Returns metadata in this plugin not in the given plugin.
   //For 'enabled', use this plugin's value.
   //For 'priority', use 0 if the two plugin priorities are equal, and make it not explicit. Otherwise use this plugin's value.
-  PluginMetadata NewMetadata(const PluginMetadata& plugin) const;
+  LOOT_API PluginMetadata NewMetadata(const PluginMetadata& plugin) const;
 
-  std::string Name() const;
-  std::string LowercasedName() const;
-  bool Enabled() const;
-  Priority LocalPriority() const;
-  Priority GlobalPriority() const;
-  std::set<File> LoadAfter() const;
-  std::set<File> Reqs() const;
-  std::set<File> Incs() const;
-  std::vector<Message> Messages() const;
-  std::set<Tag> Tags() const;
-  std::set<PluginCleaningData> DirtyInfo() const;
-  std::set<PluginCleaningData> CleanInfo() const;
-  std::set<Location> Locations() const;
+  LOOT_API std::string Name() const;
+  LOOT_API std::string LowercasedName() const;
+  LOOT_API bool Enabled() const;
+  LOOT_API Priority LocalPriority() const;
+  LOOT_API Priority GlobalPriority() const;
+  LOOT_API std::set<File> LoadAfter() const;
+  LOOT_API std::set<File> Reqs() const;
+  LOOT_API std::set<File> Incs() const;
+  LOOT_API std::vector<Message> Messages() const;
+  LOOT_API std::set<Tag> Tags() const;
+  LOOT_API std::set<PluginCleaningData> DirtyInfo() const;
+  LOOT_API std::set<PluginCleaningData> CleanInfo() const;
+  LOOT_API std::set<Location> Locations() const;
 
-  std::vector<SimpleMessage> SimpleMessages(const LanguageCode language) const;
+  LOOT_API std::vector<SimpleMessage> SimpleMessages(const LanguageCode language) const;
 
-  void Enabled(const bool enabled);
-  void LocalPriority(const Priority& priority);
-  void GlobalPriority(const Priority& priority);
-  void LoadAfter(const std::set<File>& after);
-  void Reqs(const std::set<File>& reqs);
-  void Incs(const std::set<File>& incs);
-  void Messages(const std::vector<Message>& messages);
-  void Tags(const std::set<Tag>& tags);
-  void DirtyInfo(const std::set<PluginCleaningData>& info);
-  void CleanInfo(const std::set<PluginCleaningData>& info);
-  void Locations(const std::set<Location>& locations);
+  LOOT_API void Enabled(const bool enabled);
+  LOOT_API void LocalPriority(const Priority& priority);
+  LOOT_API void GlobalPriority(const Priority& priority);
+  LOOT_API void LoadAfter(const std::set<File>& after);
+  LOOT_API void Reqs(const std::set<File>& reqs);
+  LOOT_API void Incs(const std::set<File>& incs);
+  LOOT_API void Messages(const std::vector<Message>& messages);
+  LOOT_API void Tags(const std::set<Tag>& tags);
+  LOOT_API void DirtyInfo(const std::set<PluginCleaningData>& info);
+  LOOT_API void CleanInfo(const std::set<PluginCleaningData>& info);
+  LOOT_API void Locations(const std::set<Location>& locations);
 
-  bool HasNameOnly() const;
-  bool IsRegexPlugin() const;
+  LOOT_API bool HasNameOnly() const;
+  LOOT_API bool IsRegexPlugin() const;
 
   //Compare name strings.
-  bool operator == (const PluginMetadata& rhs) const;
-  bool operator != (const PluginMetadata& rhs) const;
+  LOOT_API bool operator == (const PluginMetadata& rhs) const;
+  LOOT_API bool operator != (const PluginMetadata& rhs) const;
 
   //Compare name string.
-  bool operator == (const std::string& rhs) const;
-  bool operator != (const std::string& rhs) const;
+  LOOT_API bool operator == (const std::string& rhs) const;
+  LOOT_API bool operator != (const std::string& rhs) const;
 private:
   std::string name_;
   bool enabled_;
diff --git a/include/loot/metadata/priority.h b/include/loot/metadata/priority.h
index eb6dc307..1891e89f 100644
--- a/include/loot/metadata/priority.h
+++ b/include/loot/metadata/priority.h
@@ -26,25 +26,27 @@
 
 #include <cstdint>
 
+#include "loot/api_decorator.h"
+
 namespace loot {
 class Priority {
 public:
-  Priority();
+  LOOT_API Priority();
   // Take an int to prevent literals that are too large for one byte from
   // wrapping around to negative values.
-  explicit Priority(const int value);
+  LOOT_API explicit Priority(const int value);
 
   // Doesn't return an int8_t because it is commonly signed char, which
   // yaml-cpp interprets as a character rather than an integer.
-  short getValue() const;
-  bool isExplicit() const;
+  LOOT_API short getValue() const;
+  LOOT_API bool isExplicit() const;
 
-  bool operator < (const Priority& rhs) const;
-  bool operator > (const Priority& rhs) const;
-  bool operator >= (const Priority& rhs) const;
-  bool operator == (const Priority& rhs) const;
+  LOOT_API bool operator < (const Priority& rhs) const;
+  LOOT_API bool operator > (const Priority& rhs) const;
+  LOOT_API bool operator >= (const Priority& rhs) const;
+  LOOT_API bool operator == (const Priority& rhs) const;
 
-  bool operator > (const uint8_t rhs) const;
+  LOOT_API bool operator > (const uint8_t rhs) const;
 
 private:
   bool isExplicitZeroValue_;
diff --git a/include/loot/metadata/tag.h b/include/loot/metadata/tag.h
index f666ee71..697031d3 100644
--- a/include/loot/metadata/tag.h
+++ b/include/loot/metadata/tag.h
@@ -26,21 +26,22 @@
 
 #include <string>
 
+#include "loot/api_decorator.h"
 #include "loot/metadata/conditional_metadata.h"
 
 namespace loot {
 class Tag : public ConditionalMetadata {
 public:
-  Tag();
-  Tag(const std::string& tag,
-      const bool isAddition = true,
-      const std::string& condition = "");
+  LOOT_API Tag();
+  LOOT_API Tag(const std::string& tag,
+               const bool isAddition = true,
+               const std::string& condition = "");
 
-  bool operator < (const Tag& rhs) const;
-  bool operator == (const Tag& rhs) const;
+  LOOT_API bool operator < (const Tag& rhs) const;
+  LOOT_API bool operator == (const Tag& rhs) const;
 
-  bool IsAddition() const;
-  std::string Name() const;
+  LOOT_API bool IsAddition() const;
+  LOOT_API std::string Name() const;
 private:
   std::string name_;
   bool addTag_;