diff --git a/VisualStudio/FHeroes2Enh/FHeroes2Enh.vcxproj b/VisualStudio/FHeroes2Enh/FHeroes2Enh.vcxproj
index 6bbaeff..8aed93b 100644
--- a/VisualStudio/FHeroes2Enh/FHeroes2Enh.vcxproj
+++ b/VisualStudio/FHeroes2Enh/FHeroes2Enh.vcxproj
@@ -141,12 +141,16 @@
       <OmitFramePointers>true</OmitFramePointers>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
       <SmallerTypeCheck>false</SmallerTypeCheck>
-      <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
+      <FavorSizeOrSpeed>Size</FavorSizeOrSpeed>
       <StringPooling>true</StringPooling>
       <FloatingPointExceptions>false</FloatingPointExceptions>
       <LanguageStandard>stdcpp14</LanguageStandard>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
+      <CreateHotpatchableImage>false</CreateHotpatchableImage>
+      <EnforceTypeConversionRules>true</EnforceTypeConversionRules>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
+      <CallingConvention>FastCall</CallingConvention>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
diff --git a/src/Installer/Installer/fh2enh.zip b/src/Installer/Installer/fh2enh.zip
index e199fa2..19a5578 100644
Binary files a/src/Installer/Installer/fh2enh.zip and b/src/Installer/Installer/fh2enh.zip differ
diff --git a/src/engine/IMG_savepng.cpp b/src/engine/IMG_savepng.cpp
index 78cd2bf..3a66e6e 100644
--- a/src/engine/IMG_savepng.cpp
+++ b/src/engine/IMG_savepng.cpp
@@ -37,7 +37,7 @@
 
 #include "png.h"
 
-int IMG_SavePNG(const char *file, SDL_Surface *surf, int compression)
+int __cdecl IMG_SavePNG(const char *file, SDL_Surface *surf, int compression)
 {
     SDL_RWops *fp = SDL_RWFromFile(file, "wb");
 
@@ -51,7 +51,7 @@ int IMG_SavePNG(const char *file, SDL_Surface *surf, int compression)
     return ret;
 }
 
-static void png_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
+static void __cdecl png_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
 {
     auto *rp = (SDL_RWops *) png_get_io_ptr(png_ptr);
     SDL_RWwrite(rp, data, 1, length);
diff --git a/src/engine/IMG_savepng.h b/src/engine/IMG_savepng.h
index 0808c79..bc925cd 100644
--- a/src/engine/IMG_savepng.h
+++ b/src/engine/IMG_savepng.h
@@ -35,7 +35,7 @@
  * Takes a filename, a surface to save, and a compression level.  The
  * compression level can be 0(min) through 9(max), or -1(default).
  */
-int IMG_SavePNG(const char *file,
+int __cdecl IMG_SavePNG(const char *file,
                 SDL_Surface *surf,
                 int compression);
 
diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index 04bad45..84d92cf 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -76,7 +76,7 @@ bool SDL::Init(u32 system)
     return true;
 }
 
-void SDL::Quit()
+void __cdecl SDL::Quit()
 {
     System::CreateTrayIcon(false);
     System::PowerManagerOff(false);
diff --git a/src/engine/engine.h b/src/engine/engine.h
index 4b64ca2..f626a0e 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -36,7 +36,7 @@ namespace SDL
 {
     bool Init(u32 system = INIT_VIDEO);
 
-    void Quit();
+    void __cdecl Quit();
 
     bool SubSystem(u32 system);
 }
diff --git a/src/engine/localevent.cpp b/src/engine/localevent.cpp
index 5eac377..635f653 100644
--- a/src/engine/localevent.cpp
+++ b/src/engine/localevent.cpp
@@ -839,7 +839,7 @@ void LocalEvent::SetGlobalFilterKeysEvents(void (*pf)(int, int))
 }
 
 
-int LocalEvent::GlobalFilterEvents(const SDL_Event *event)
+int __cdecl LocalEvent::GlobalFilterEvents(const SDL_Event *event)
 {
     LocalEvent &le = Get();
 
diff --git a/src/engine/localevent.h b/src/engine/localevent.h
index 2f77d67..44d150c 100644
--- a/src/engine/localevent.h
+++ b/src/engine/localevent.h
@@ -304,7 +304,7 @@ class LocalEvent
 
     void HandleKeyboardEvent(SDL_KeyboardEvent &);
 
-    static int GlobalFilterEvents(const SDL_Event *);
+    static int __cdecl GlobalFilterEvents(const SDL_Event *);
 
 
     enum flag_t
diff --git a/src/engine/thread.cpp b/src/engine/thread.cpp
index dcf6f3f..92526dd 100644
--- a/src/engine/thread.cpp
+++ b/src/engine/thread.cpp
@@ -43,7 +43,7 @@ Thread &Thread::operator=(const Thread &)
     return *this;
 }
 
-void Thread::Create(int (*fn)(void *), void *param)
+void Thread::Create(int (__cdecl *fn)(void *), void *param)
 {
     thread = SDL_CreateThread(fn, param);
 }
@@ -110,7 +110,7 @@ Timer::Timer() : id(nullptr)
 {
 }
 
-void Timer::Run(u32 interval, u32 (*fn)(u32, void *), void *param)
+void Timer::Run(u32 interval, u32(__cdecl *fn)(u32, void *), void *param)
 {
     if (id) Remove();
 
diff --git a/src/engine/thread.h b/src/engine/thread.h
index 6422281..95a9b8e 100644
--- a/src/engine/thread.h
+++ b/src/engine/thread.h
@@ -45,7 +45,7 @@ namespace SDL
 
         Thread &operator=(const Thread &);
 
-        void Create(int (*)(void *), void *param = nullptr);
+        void Create(int (__cdecl *)(void *), void *param = nullptr);
 
         int Wait();
 
@@ -88,7 +88,7 @@ namespace SDL
 
         bool IsValid() const;
 
-        void Run(u32, u32 (*)(u32, void *), void *param = nullptr);
+        void Run(u32, u32 (__cdecl*)(u32, void *), void *param = nullptr);
 
         void Remove();
 
diff --git a/src/fheroes2/agg/agg.cpp b/src/fheroes2/agg/agg.cpp
index 208a9e4..69ff365 100644
--- a/src/fheroes2/agg/agg.cpp
+++ b/src/fheroes2/agg/agg.cpp
@@ -1608,7 +1608,7 @@ bool AGG::Init()
     return true;
 }
 
-void AGG::Quit()
+void __cdecl AGG::Quit()
 {
     for (auto &icns : icn_cache)
     {
diff --git a/src/fheroes2/agg/agg.h b/src/fheroes2/agg/agg.h
index c3d05d3..be582dc 100644
--- a/src/fheroes2/agg/agg.h
+++ b/src/fheroes2/agg/agg.h
@@ -53,7 +53,7 @@ namespace AGG
 {
     bool Init();
 
-    void Quit();
+    void __cdecl Quit();
 
     int PutICN(const Sprite &, bool init_reflect = false);
 
diff --git a/src/fheroes2/army/army_troop.cpp b/src/fheroes2/army/army_troop.cpp
index fd58244..6065eb2 100644
--- a/src/fheroes2/army/army_troop.cpp
+++ b/src/fheroes2/army/army_troop.cpp
@@ -154,7 +154,7 @@ bool Troop::isBattle() const
     return false;
 }
 
-bool Troop::isModes(u32) const
+bool Troop::isModes(u32)
 {
     return false;
 }
diff --git a/src/fheroes2/army/army_troop.h b/src/fheroes2/army/army_troop.h
index 6b198bb..fdb000f 100644
--- a/src/fheroes2/army/army_troop.h
+++ b/src/fheroes2/army/army_troop.h
@@ -75,7 +75,7 @@ class Troop : public Monster
 
     virtual bool isBattle() const;
 
-    bool isModes(u32) const;
+    static bool isModes(u32);
 
     string GetAttackString() const;
 
diff --git a/src/fheroes2/gui/interface_status.cpp b/src/fheroes2/gui/interface_status.cpp
index 5173f32..eae175f 100644
--- a/src/fheroes2/gui/interface_status.cpp
+++ b/src/fheroes2/gui/interface_status.cpp
@@ -52,7 +52,7 @@ int Interface::StatusWindow::GetState() const
     return state;
 }
 
-u32 Interface::StatusWindow::ResetResourceStatus(u32 tick, void *ptr)
+u32 __cdecl Interface::StatusWindow::ResetResourceStatus(u32 tick, void *ptr)
 {
     if (!ptr)
         return 0;
diff --git a/src/fheroes2/gui/interface_status.h b/src/fheroes2/gui/interface_status.h
index fcc80d8..756fc7f 100644
--- a/src/fheroes2/gui/interface_status.h
+++ b/src/fheroes2/gui/interface_status.h
@@ -83,7 +83,7 @@ namespace Interface
 
         void DrawAITurns() const;
 
-        static u32 ResetResourceStatus(u32, void *);
+        static u32 __cdecl ResetResourceStatus(u32, void *);
 
         static u32 RedrawAIStatus(u32, void *);