diff --git a/CMakeLists.txt b/CMakeLists.txt
index d5aad7a..2b647da 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,8 @@ add_definitions(
   /DITH_HAS_CRT
 )
 
+include_directories(include)
+
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/Build)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/Build)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/Build)
diff --git a/GUI/extensions.cpp b/GUI/extensions.cpp
index 2cb2464..4a5d66f 100644
--- a/GUI/extensions.cpp
+++ b/GUI/extensions.cpp
@@ -1,6 +1,5 @@
 #include "extensions.h"
 #include <shared_mutex>
-#include <map>
 #include <QDir>
 
 std::shared_mutex extenMutex;
diff --git a/GUI/extensions.h b/GUI/extensions.h
index bf5283a..ee06e33 100644
--- a/GUI/extensions.h
+++ b/GUI/extensions.h
@@ -1,12 +1,8 @@
 #ifndef EXTENSIONS_H
 #define EXTENSIONS_H
 
-#include <Windows.h>
-#include <string>
+#include "qtcommon.h"
 #include <map>
-#include <unordered_map>
-#include <vector>
-#include <QComboBox>
 
 std::map<int, QString> LoadExtensions();
 std::wstring DispatchSentenceToExtensions(std::wstring sentence, std::unordered_map<std::string, int> miscInfo);
diff --git a/GUI/main.cpp b/GUI/main.cpp
index 2984ab4..d3b6902 100644
--- a/GUI/main.cpp
+++ b/GUI/main.cpp
@@ -1,12 +1,20 @@
 #include "mainwindow.h"
-#include "../host/host.h"
 #include <QApplication>
 
 int main(int argc, char *argv[])
 {
-	QApplication a(argc, argv);
-	MainWindow w;
-	w.show();
+	_CrtMemState memStates[100] = {};
+	_CrtMemCheckpoint(memStates);
+	{
+		QApplication a(argc, argv);
+		MainWindow w;
+		w.show();
 
-	return a.exec();
+
+		a.exec();
+	}
+	_CrtMemCheckpoint(memStates + 1);
+	if (_CrtMemDifference(memStates + 2, memStates + 0, memStates + 1))
+		_CrtMemDumpStatistics(memStates + 2);
+	return 0;
 }
diff --git a/GUI/mainwindow.h b/GUI/mainwindow.h
index 8cad8c3..dcfdac7 100644
--- a/GUI/mainwindow.h
+++ b/GUI/mainwindow.h
@@ -1,13 +1,10 @@
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
+#include "qtcommon.h"
 #include <QMainWindow>
-#include <Windows.h>
-#include <QVector>
 #include <QPlainTextEdit>
 #include <QComboBox>
-#include <unordered_map>
-#include <string>
 #include "../host/host.h"
 
 namespace Ui
diff --git a/GUI/misc.h b/GUI/misc.h
index 556b62f..de2a13b 100644
--- a/GUI/misc.h
+++ b/GUI/misc.h
@@ -1,9 +1,7 @@
 #ifndef MISC_H
 #define MISC_H
 
-#include <QString>
-#include <unordered_map>
-#include <Windows.h>
+#include "qtcommon.h"
 #include "../host/host.h"
 
 QString GetFullModuleName(DWORD processId, HMODULE module = NULL);
diff --git a/GUI/qtcommon.h b/GUI/qtcommon.h
new file mode 100644
index 0000000..52be976
--- /dev/null
+++ b/GUI/qtcommon.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#include "common.h"
+#include <QString>
+#include <QStringList>
+#include <QVector>
\ No newline at end of file
diff --git a/extensions/extensions.h b/extensions/extensions.h
index 13194cd..49868c9 100644
--- a/extensions/extensions.h
+++ b/extensions/extensions.h
@@ -1,3 +1,5 @@
+#pragma once
+
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <string>
diff --git a/host/host.cc b/host/host.cc
index 417a6c2..8a408bb 100644
--- a/host/host.cc
+++ b/host/host.cc
@@ -5,13 +5,9 @@
 #include "host.h"
 #include "pipe.h"
 #include "winmutex.h"
-#include <mutex>
-#include <thread>
-#include <atlbase.h>
 #include "../vnrhook/include/const.h"
 #include "../vnrhook/include/defs.h"
 #include "../vnrhook/include/types.h"
-#include <unordered_map>
 
 std::unordered_map<ThreadParameter, TextThread*, ThreadParameterHasher> textThreadsByParams;
 std::unordered_map<DWORD, ProcessRecord> processRecordsByIds;
diff --git a/host/host.h b/host/host.h
index 41f534a..a3da0fb 100644
--- a/host/host.h
+++ b/host/host.h
@@ -4,14 +4,12 @@
 // 8/23/2013 jichi
 // Branch: ITH/IHF.h, rev 105
 
-#define DLLEXPORT __declspec(dllexport)
-
-#include <Windows.h>
+#include "common.h"
 #include "textthread.h"
-#include <string>
-#include <functional>
 #include "../vnrhook/include/types.h"
 
+#define DLLEXPORT __declspec(dllexport)
+
 struct ProcessRecord
 {
 	HANDLE process_handle;
diff --git a/host/pipe.cc b/host/pipe.cc
index c13cea5..8223058 100644
--- a/host/pipe.cc
+++ b/host/pipe.cc
@@ -6,7 +6,6 @@
 #include "host.h"
 #include "../vnrhook/include/defs.h"
 #include "../vnrhook/include/const.h"
-#include <atlbase.h>
 
 void CreateNewPipe()
 {
diff --git a/host/pipe.h b/host/pipe.h
index 961c06f..cb0dee5 100644
--- a/host/pipe.h
+++ b/host/pipe.h
@@ -3,7 +3,7 @@
 // pipe.h
 // 7/19/2018 Artikash
 
-#include <Windows.h>
+#include "common.h"
 
 void CreateNewPipe();
 
diff --git a/host/textthread.cc b/host/textthread.cc
index 0744b54..9499c79 100644
--- a/host/textthread.cc
+++ b/host/textthread.cc
@@ -6,9 +6,7 @@
 #endif // _MSC_VER
 
 #include "textthread.h"
-#include <mutex>
 #include "../vnrhook/include/const.h"
-#include "winmutex.h"
 
 #define TT_LOCK std::lock_guard<std::recursive_mutex> ttLocker(ttMutex) // Synchronized scope for accessing private data
 
diff --git a/host/textthread.h b/host/textthread.h
index 059bc0e..a6d4a78 100644
--- a/host/textthread.h
+++ b/host/textthread.h
@@ -4,12 +4,7 @@
 // 8/23/2013 jichi
 // Branch: ITH/TextThread.h, rev 120
 
-#include <Windows.h>
-#include <string>
-#include <vector>
-#include <functional>
-#include <mutex>
-#include <thread>
+#include "common.h"
 
 struct ThreadParameter
 {
diff --git a/host/winmutex.h b/host/winmutex.h
index b924a2c..1cb43d9 100644
--- a/host/winmutex.h
+++ b/host/winmutex.h
@@ -3,10 +3,7 @@
 // 12/11/2011 jichi
 
 #include <windows.h>
-
-#ifdef _MSC_VER
-# pragma warning(disable:4800) // C4800: forcing value to bool
-#endif // _MSC_VER
+#include "common.h"
 
 // Artikash 7/20/2018: similar to std::lock guard but use Winapi objects for cross process comms
 
@@ -14,7 +11,7 @@ class MutexLocker
 {
 	HANDLE mutex;
 public:
-	explicit MutexLocker(HANDLE mutex) : mutex(mutex) { WaitForSingleObject(mutex, 0); }
+	MutexLocker(HANDLE mutex) : mutex(mutex) { WaitForSingleObject(mutex, 0); }
 	~MutexLocker() { if (mutex != INVALID_HANDLE_VALUE && mutex != nullptr) ReleaseMutex(mutex); }
 };
 
diff --git a/include/common.h b/include/common.h
new file mode 100644
index 0000000..655a44a
--- /dev/null
+++ b/include/common.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#include <atlbase.h> // A2W
+#include <string>
+#include <vector>
+#include <unordered_map>
+#include <functional>
+#include <thread>
+#include <mutex>
\ No newline at end of file