diff --git a/Source/DiabloUI/settingsmenu.cpp b/Source/DiabloUI/settingsmenu.cpp
index 3164d33ce..57492ea58 100644
--- a/Source/DiabloUI/settingsmenu.cpp
+++ b/Source/DiabloUI/settingsmenu.cpp
@@ -5,6 +5,7 @@
 #include "control.h"
 #include "engine/render/text_render.hpp"
 #include "hwcursor.hpp"
+#include "miniwin/miniwin.h"
 #include "options.h"
 #include "utils/language.h"
 #include "utils/utf8.hpp"
diff --git a/Source/capture.cpp b/Source/capture.cpp
index 6ea215a6b..56fb6a603 100644
--- a/Source/capture.cpp
+++ b/Source/capture.cpp
@@ -54,7 +54,7 @@ bool CaptureHdr(int16_t width, int16_t height, std::ofstream *out)
  */
 bool CapturePal(SDL_Color *palette, std::ofstream *out)
 {
-	BYTE pcxPalette[1 + 256 * 3];
+	uint8_t pcxPalette[1 + 256 * 3];
 
 	pcxPalette[0] = 12;
 	for (int i = 0; i < 256; i++) {
@@ -75,12 +75,12 @@ bool CapturePal(SDL_Color *palette, std::ofstream *out)
 
  * @return Output buffer
  */
-BYTE *CaptureEnc(BYTE *src, BYTE *dst, int width)
+uint8_t *CaptureEnc(uint8_t *src, uint8_t *dst, int width)
 {
 	int rleLength;
 
 	do {
-		BYTE rlePixel = *src;
+		uint8_t rlePixel = *src;
 		src++;
 		rleLength = 1;
 
@@ -119,10 +119,10 @@ BYTE *CaptureEnc(BYTE *src, BYTE *dst, int width)
 bool CapturePix(const Surface &buf, std::ofstream *out)
 {
 	int width = buf.w();
-	std::unique_ptr<BYTE[]> pBuffer { new BYTE[2 * width] };
-	BYTE *pixels = buf.begin();
+	std::unique_ptr<uint8_t[]> pBuffer { new uint8_t[2 * width] };
+	uint8_t *pixels = buf.begin();
 	for (int height = buf.h(); height > 0; height--) {
-		const BYTE *pBufferEnd = CaptureEnc(pixels, pBuffer.get(), width);
+		const uint8_t *pBufferEnd = CaptureEnc(pixels, pBuffer.get(), width);
 		pixels += buf.pitch();
 		out->write(reinterpret_cast<const char *>(pBuffer.get()), pBufferEnd - pBuffer.get());
 		if (out->fail())
diff --git a/Source/control.cpp b/Source/control.cpp
index eabf0be4b..493ac8e0d 100644
--- a/Source/control.cpp
+++ b/Source/control.cpp
@@ -31,6 +31,7 @@
 #include "levels/trigs.h"
 #include "lighting.h"
 #include "minitext.h"
+#include "miniwin/miniwin.h"
 #include "missiles.h"
 #include "options.h"
 #include "panels/charpanel.hpp"
diff --git a/Source/controls/game_controls.cpp b/Source/controls/game_controls.cpp
index e5a1bf4dd..139f7386e 100644
--- a/Source/controls/game_controls.cpp
+++ b/Source/controls/game_controls.cpp
@@ -4,6 +4,7 @@
 
 #include "controls/controller.h"
 #include "controls/controller_motion.h"
+#include "miniwin/miniwin.h"
 #ifndef USE_SDL1
 #include "controls/devices/game_controller.h"
 #endif
diff --git a/Source/controls/plrctrls.cpp b/Source/controls/plrctrls.cpp
index 70bdbb85c..dd44371ae 100644
--- a/Source/controls/plrctrls.cpp
+++ b/Source/controls/plrctrls.cpp
@@ -11,6 +11,7 @@
 #include "automap.h"
 #include "control.h"
 #include "controls/controller_motion.h"
+#include "miniwin/miniwin.h"
 #ifndef USE_SDL1
 #include "controls/devices/game_controller.h"
 #endif
diff --git a/Source/cursor.h b/Source/cursor.h
index 6b810d8a6..ced3b06b1 100644
--- a/Source/cursor.h
+++ b/Source/cursor.h
@@ -10,7 +10,6 @@
 
 #include "engine.h"
 #include "engine/cel_sprite.hpp"
-#include "miniwin/miniwin.h"
 #include "utils/attributes.h"
 #include "utils/stdcompat/optional.hpp"
 
diff --git a/Source/debug.cpp b/Source/debug.cpp
index f418c55d1..39dbe278a 100644
--- a/Source/debug.cpp
+++ b/Source/debug.cpp
@@ -20,6 +20,7 @@
 #include "inv.h"
 #include "levels/setmaps.h"
 #include "lighting.h"
+#include "miniwin/miniwin.h"
 #include "monstdat.h"
 #include "monster.h"
 #include "plrmsg.h"
diff --git a/Source/diablo.cpp b/Source/diablo.cpp
index fbacf18bc..fa5fb6f1c 100644
--- a/Source/diablo.cpp
+++ b/Source/diablo.cpp
@@ -14,6 +14,7 @@
 #include "capture.h"
 #include "cursor.h"
 #include "dead.h"
+#include "miniwin/miniwin.h"
 #ifdef _DEBUG
 #include "debug.h"
 #endif
diff --git a/Source/effects.cpp b/Source/effects.cpp
index fceed143a..fba51f28f 100644
--- a/Source/effects.cpp
+++ b/Source/effects.cpp
@@ -9,6 +9,7 @@
 #include "engine/sound.h"
 #include "engine/sound_defs.hpp"
 #include "init.h"
+#include "miniwin/miniwin.h"
 #include "player.h"
 #include "utils/stdcompat/algorithm.hpp"
 #include "utils/str_cat.hpp"
@@ -1161,7 +1162,7 @@ _sfx_id RndSFX(_sfx_id psfx)
 	return static_cast<_sfx_id>(psfx + GenerateRnd(nRand));
 }
 
-void PrivSoundInit(BYTE bLoadMask)
+void PrivSoundInit(uint8_t bLoadMask)
 {
 	if (!gbSndInited) {
 		return;
diff --git a/Source/engine.cpp b/Source/engine.cpp
index c3245a4e3..18aeef4f3 100644
--- a/Source/engine.cpp
+++ b/Source/engine.cpp
@@ -14,6 +14,7 @@
 #include <array>
 #include <cassert>
 #include <cstdint>
+#include <cstring>
 
 #include "engine/render/common_impl.h"
 #include "lighting.h"
diff --git a/Source/engine/render/dun_render.cpp b/Source/engine/render/dun_render.cpp
index 8c953495f..1541f0157 100644
--- a/Source/engine/render/dun_render.cpp
+++ b/Source/engine/render/dun_render.cpp
@@ -10,6 +10,7 @@
 #include <cstdint>
 
 #include "lighting.h"
+#include "miniwin/miniwin.h"
 #include "options.h"
 #include "utils/attributes.h"
 
diff --git a/Source/engine/render/scrollrt.cpp b/Source/engine/render/scrollrt.cpp
index 57cd99f6f..76e982141 100644
--- a/Source/engine/render/scrollrt.cpp
+++ b/Source/engine/render/scrollrt.cpp
@@ -26,6 +26,7 @@
 #include "inv.h"
 #include "lighting.h"
 #include "minitext.h"
+#include "miniwin/miniwin.h"
 #include "missiles.h"
 #include "nthread.h"
 #include "options.h"
@@ -201,7 +202,7 @@ int sgdwCursXOld;
 int sgdwCursYOld;
 
 uint32_t sgdwCursWdt;
-BYTE sgSaveBack[8192];
+uint8_t sgSaveBack[8192];
 uint32_t sgdwCursHgtOld;
 
 /**
@@ -226,7 +227,7 @@ const char *const PlayerModeNames[] = {
 	"quitting"
 };
 
-void BlitCursor(BYTE *dst, std::uint32_t dstPitch, BYTE *src, std::uint32_t srcPitch)
+void BlitCursor(uint8_t *dst, std::uint32_t dstPitch, uint8_t *src, std::uint32_t srcPitch)
 {
 	for (std::uint32_t i = 0; i < sgdwCursHgt; ++i, src += srcPitch, dst += dstPitch) {
 		memcpy(dst, src, sgdwCursWdt);
@@ -1024,8 +1025,8 @@ void Zoom(const Surface &out)
 	const int srcHeight = (out.h() + 1) / 2;
 	const int doubleableHeight = out.h() / 2;
 
-	BYTE *src = out.at(srcWidth - 1, srcHeight - 1);
-	BYTE *dst = out.at(viewportOffsetX + viewportWidth - 1, out.h() - 1);
+	uint8_t *src = out.at(srcWidth - 1, srcHeight - 1);
+	uint8_t *dst = out.at(viewportOffsetX + viewportWidth - 1, out.h() - 1);
 	const bool oddViewportWidth = (viewportWidth % 2) == 1;
 
 	for (int hgt = 0; hgt < doubleableHeight; hgt++) {
diff --git a/Source/engine/sound.h b/Source/engine/sound.h
index f4a862cb4..17c0cdda8 100644
--- a/Source/engine/sound.h
+++ b/Source/engine/sound.h
@@ -10,7 +10,6 @@
 #include <string>
 
 #include "levels/gendung.h"
-#include "miniwin/miniwin.h"
 
 #ifndef NOSOUND
 #include "utils/soundsample.h"
diff --git a/Source/gmenu.cpp b/Source/gmenu.cpp
index d2c11cf22..70f1ce681 100644
--- a/Source/gmenu.cpp
+++ b/Source/gmenu.cpp
@@ -14,6 +14,7 @@
 #include "engine/load_cel.hpp"
 #include "engine/render/cel_render.hpp"
 #include "engine/render/text_render.hpp"
+#include "miniwin/miniwin.h"
 #include "options.h"
 #include "stores.h"
 #include "utils/language.h"
@@ -31,7 +32,7 @@ OptionalOwnedCelSprite sgpLogo;
 bool mouseNavigation;
 TMenuItem *sgpCurrItem;
 int LogoAnim_tick;
-BYTE LogoAnim_frame;
+uint8_t LogoAnim_frame;
 void (*gmenu_current_option)();
 int sgCurrentMenuIdx;
 
diff --git a/Source/init.cpp b/Source/init.cpp
index 818cf5d60..a785e248c 100644
--- a/Source/init.cpp
+++ b/Source/init.cpp
@@ -15,6 +15,7 @@
 #include "DiabloUI/diabloui.h"
 #include "engine/assets.hpp"
 #include "engine/dx.h"
+#include "miniwin/miniwin.h"
 #include "mpq/mpq_reader.hpp"
 #include "options.h"
 #include "pfile.h"
diff --git a/Source/init.h b/Source/init.h
index 908380344..aec33d9e1 100644
--- a/Source/init.h
+++ b/Source/init.h
@@ -5,12 +5,13 @@
  */
 #pragma once
 
-#include "miniwin/miniwin.h"
 #include "mpq/mpq_reader.hpp"
 #include "utils/attributes.h"
 
 namespace devilution {
 
+typedef void (*WNDPROC)(uint32_t, int32_t, int32_t);
+
 extern bool gbActive;
 extern std::optional<MpqArchive> hellfire_mpq;
 extern WNDPROC CurrentProc;
diff --git a/Source/interfac.cpp b/Source/interfac.cpp
index 62faf1607..f6c9cbe70 100644
--- a/Source/interfac.cpp
+++ b/Source/interfac.cpp
@@ -21,6 +21,7 @@
 #include "hwcursor.hpp"
 #include "init.h"
 #include "loadsave.h"
+#include "miniwin/miniwin.h"
 #include "pfile.h"
 #include "plrmsg.h"
 #include "utils/sdl_geometry.h"
@@ -37,7 +38,7 @@ uint32_t sgdwProgress;
 int progress_id;
 
 /** The color used for the progress bar as an index into the palette. */
-const BYTE BarColor[3] = { 138, 43, 254 };
+const uint8_t BarColor[3] = { 138, 43, 254 };
 /** The screen position of the top left corner of the progress bar. */
 const int BarPos[3][2] = { { 53, 37 }, { 53, 421 }, { 53, 37 } };
 
diff --git a/Source/inv.cpp b/Source/inv.cpp
index 97e24d378..b0b68aca6 100644
--- a/Source/inv.cpp
+++ b/Source/inv.cpp
@@ -20,6 +20,7 @@
 #include "inv_iterators.hpp"
 #include "levels/town.h"
 #include "minitext.h"
+#include "miniwin/miniwin.h"
 #include "options.h"
 #include "panels/ui_panels.hpp"
 #include "plrmsg.h"
diff --git a/Source/items.cpp b/Source/items.cpp
index 477eb134a..4301711ad 100644
--- a/Source/items.cpp
+++ b/Source/items.cpp
@@ -2271,7 +2271,7 @@ bool IsItemAvailable(int i)
 	        *sgOptions.Gameplay.testBard && IsAnyOf(i, IDI_BARDSWORD, IDI_BARDDAGGER));
 }
 
-BYTE GetOutlineColor(const Item &item, bool checkReq)
+uint8_t GetOutlineColor(const Item &item, bool checkReq)
 {
 	if (checkReq && !item._iStatFlag)
 		return ICOL_RED;
diff --git a/Source/items.h b/Source/items.h
index c1afa6e80..ba06256d4 100644
--- a/Source/items.h
+++ b/Source/items.h
@@ -449,7 +449,7 @@ extern bool ShowUniqueItemInfoBox;
 extern CornerStoneStruct CornerStone;
 extern bool UniqueItemFlags[128];
 
-BYTE GetOutlineColor(const Item &item, bool checkReq);
+uint8_t GetOutlineColor(const Item &item, bool checkReq);
 bool IsItemAvailable(int i);
 bool IsUniqueAvailable(int i);
 void InitItemGFX();
diff --git a/Source/levels/drlg_l2.cpp b/Source/levels/drlg_l2.cpp
index b7b9f308e..6e7bfcade 100644
--- a/Source/levels/drlg_l2.cpp
+++ b/Source/levels/drlg_l2.cpp
@@ -13,6 +13,7 @@
 #include "engine/size.hpp"
 #include "levels/gendung.h"
 #include "levels/setmaps.h"
+#include "miniwin/miniwin.h"
 #include "player.h"
 #include "quests.h"
 #include "utils/stdcompat/algorithm.hpp"
diff --git a/Source/levels/drlg_l3.cpp b/Source/levels/drlg_l3.cpp
index 234105a5e..0a893e554 100644
--- a/Source/levels/drlg_l3.cpp
+++ b/Source/levels/drlg_l3.cpp
@@ -6,6 +6,7 @@
 #include "levels/gendung.h"
 #include "levels/setmaps.h"
 #include "lighting.h"
+#include "miniwin/miniwin.h"
 #include "monster.h"
 #include "objdat.h"
 #include "objects.h"
diff --git a/Source/levels/drlg_l4.cpp b/Source/levels/drlg_l4.cpp
index 30104147b..c799f6b97 100644
--- a/Source/levels/drlg_l4.cpp
+++ b/Source/levels/drlg_l4.cpp
@@ -5,6 +5,7 @@
  */
 #include "levels/drlg_l4.h"
 
+#include "miniwin/miniwin.h"
 #include "engine/load_file.hpp"
 #include "engine/random.hpp"
 #include "levels/gendung.h"
diff --git a/Source/lighting.cpp b/Source/lighting.cpp
index 91f9591a0..bfcbd5ff1 100644
--- a/Source/lighting.cpp
+++ b/Source/lighting.cpp
@@ -63,7 +63,7 @@ bool dovision;
 uint8_t lightblock[64][16][16];
 
 /** RadiusAdj maps from VisionCrawlTable index to lighting vision radius adjustment. */
-const BYTE RadiusAdj[23] = { 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 4, 3, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0 };
+const uint8_t RadiusAdj[23] = { 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 4, 3, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0 };
 
 void RotateRadius(int *x, int *y, int *dx, int *dy, int *lx, int *ly, int *bx, int *by)
 {
@@ -428,7 +428,7 @@ void MakeLightTable()
 	}
 
 	if (leveltype == DTYPE_HELL) {
-		BYTE blood[16];
+		uint8_t blood[16];
 		tbl = LightTables.data();
 		for (int i = 0; i < lights; i++) {
 			int l1 = lights - i;
@@ -520,7 +520,7 @@ void MakeLightTable()
 				lightradius[j][i] = 15;
 			} else {
 				double fs = (double)15 * i / ((double)8 * (j + 1));
-				lightradius[j][i] = (BYTE)(fs + 0.5);
+				lightradius[j][i] = static_cast<uint8_t>(fs + 0.5);
 			}
 		}
 	}
@@ -530,10 +530,10 @@ void MakeLightTable()
 			double fa = (sqrt((double)(16 - j))) / 128;
 			fa *= fa;
 			for (int i = 0; i < 128; i++) {
-				lightradius[15 - j][i] = 15 - (BYTE)(fa * (double)((128 - i) * (128 - i)));
+				lightradius[15 - j][i] = 15 - static_cast<uint8_t>(fa * (double)((128 - i) * (128 - i)));
 				if (lightradius[15 - j][i] > 15)
 					lightradius[15 - j][i] = 0;
-				lightradius[15 - j][i] = lightradius[15 - j][i] - (BYTE)((15 - j) / 2);
+				lightradius[15 - j][i] = lightradius[15 - j][i] - static_cast<uint8_t>((15 - j) / 2);
 				if (lightradius[15 - j][i] > 15)
 					lightradius[15 - j][i] = 0;
 			}
diff --git a/Source/lighting.h b/Source/lighting.h
index cc805e67c..7f38286a1 100644
--- a/Source/lighting.h
+++ b/Source/lighting.h
@@ -13,7 +13,6 @@
 #include "automap.h"
 #include "engine.h"
 #include "engine/point.hpp"
-#include "miniwin/miniwin.h"
 #include "utils/attributes.h"
 #include "utils/stdcompat/invoke_result_t.hpp"
 #include "utils/stdcompat/optional.hpp"
diff --git a/Source/loadsave.cpp b/Source/loadsave.cpp
index dc28364e7..d9dab3f42 100644
--- a/Source/loadsave.cpp
+++ b/Source/loadsave.cpp
@@ -26,6 +26,7 @@
 #include "inv.h"
 #include "lighting.h"
 #include "menu.h"
+#include "miniwin/miniwin.h"
 #include "missiles.h"
 #include "mpq/mpq_writer.hpp"
 #include "pfile.h"
diff --git a/Source/miniwin/miniwin.h b/Source/miniwin/miniwin.h
index 7cb6f52a2..6ea88996c 100644
--- a/Source/miniwin/miniwin.h
+++ b/Source/miniwin/miniwin.h
@@ -24,8 +24,6 @@ namespace devilution {
 typedef uint32_t DWORD;
 typedef unsigned char BYTE;
 
-typedef void (*WNDPROC)(uint32_t, int32_t, int32_t);
-
 struct tagMSG {
 	uint32_t message;
 	int32_t wParam;
diff --git a/Source/missiles.cpp b/Source/missiles.cpp
index ff9ada978..f6fc738bd 100644
--- a/Source/missiles.cpp
+++ b/Source/missiles.cpp
@@ -849,7 +849,7 @@ bool MonsterTrapHit(int monsterId, int mindam, int maxdam, int dist, missile_id
 		return false;
 
 	int hit = GenerateRnd(100);
-	int hper = 90 - (BYTE)monster.armorClass - dist;
+	int hper = 90 - monster.armorClass - dist;
 	hper = clamp(hper, 5, 95);
 	if (monster.tryLiftGargoyle())
 		return true;
diff --git a/Source/missiles.h b/Source/missiles.h
index 6a2f9c0aa..b89b47667 100644
--- a/Source/missiles.h
+++ b/Source/missiles.h
@@ -10,7 +10,6 @@
 
 #include "engine.h"
 #include "engine/point.hpp"
-#include "miniwin/miniwin.h"
 #include "misdat.h"
 #include "monster.h"
 #include "player.h"
diff --git a/Source/movie.cpp b/Source/movie.cpp
index f0a44d3d9..46c478557 100644
--- a/Source/movie.cpp
+++ b/Source/movie.cpp
@@ -10,6 +10,7 @@
 #include "engine/demomode.h"
 #include "engine/sound.h"
 #include "hwcursor.hpp"
+#include "miniwin/miniwin.h"
 #include "storm/storm_svid.h"
 #include "utils/display.h"
 
diff --git a/Source/mpq/mpq_writer.cpp b/Source/mpq/mpq_writer.cpp
index 7bfb9ac42..133a54c1a 100644
--- a/Source/mpq/mpq_writer.cpp
+++ b/Source/mpq/mpq_writer.cpp
@@ -11,6 +11,7 @@
 #include "appfat.h"
 #include "encrypt.h"
 #include "engine.h"
+#include "miniwin/miniwin.h"
 #include "utils/endian.hpp"
 #include "utils/file_util.h"
 #include "utils/language.h"
diff --git a/Source/msg.cpp b/Source/msg.cpp
index a7f381a0d..a0c2c298e 100644
--- a/Source/msg.cpp
+++ b/Source/msg.cpp
@@ -24,6 +24,7 @@
 #include "levels/town.h"
 #include "levels/trigs.h"
 #include "lighting.h"
+#include "miniwin/miniwin.h"
 #include "missiles.h"
 #include "nthread.h"
 #include "objects.h"
diff --git a/Source/multi.cpp b/Source/multi.cpp
index 291434200..7c48a6964 100644
--- a/Source/multi.cpp
+++ b/Source/multi.cpp
@@ -16,6 +16,7 @@
 #include "engine/random.hpp"
 #include "engine/world_tile.hpp"
 #include "menu.h"
+#include "miniwin/miniwin.h"
 #include "nthread.h"
 #include "options.h"
 #include "pfile.h"
@@ -39,7 +40,7 @@ uint16_t sgwPackPlrOffsetTbl[MAX_PLRS];
 bool sgbPlayerTurnBitTbl[MAX_PLRS];
 bool sgbPlayerLeftGameTbl[MAX_PLRS];
 bool gbShouldValidatePackage;
-BYTE gbActivePlayers;
+uint8_t gbActivePlayers;
 bool gbGameDestroyed;
 bool sgbSendDeltaTbl[MAX_PLRS];
 GameData sgGameInitInfo;
@@ -56,7 +57,7 @@ bool gbIsMultiplayer;
 bool sgbTimeout;
 char szPlayerName[128];
 bool PublicGame;
-BYTE gbDeltaSender;
+uint8_t gbDeltaSender;
 bool sgbNetInited;
 uint32_t player_state[MAX_PLRS];
 Uint32 playerInfoTimers[MAX_PLRS];
diff --git a/Source/multi.h b/Source/multi.h
index 39fabb6d3..a4858db0e 100644
--- a/Source/multi.h
+++ b/Source/multi.h
@@ -43,14 +43,14 @@ struct GameInfo {
 extern bool gbSomebodyWonGameKludge;
 extern char szPlayerDescript[128];
 extern uint16_t sgwPackPlrOffsetTbl[MAX_PLRS];
-extern BYTE gbActivePlayers;
+extern uint8_t gbActivePlayers;
 extern bool gbGameDestroyed;
 extern GameData sgGameInitInfo;
 extern bool gbSelectProvider;
 extern DVL_API_FOR_TEST bool gbIsMultiplayer;
 extern char szPlayerName[128];
 extern bool PublicGame;
-extern BYTE gbDeltaSender;
+extern uint8_t gbDeltaSender;
 extern uint32_t player_state[MAX_PLRS];
 
 void InitGameInfo();
diff --git a/Source/nthread.cpp b/Source/nthread.cpp
index c85aa0a33..99461a5d8 100644
--- a/Source/nthread.cpp
+++ b/Source/nthread.cpp
@@ -17,7 +17,7 @@
 
 namespace devilution {
 
-BYTE sgbNetUpdateRate;
+uint8_t sgbNetUpdateRate;
 size_t gdwMsgLenTbl[MAX_PLRS];
 uint32_t gdwTurnsInTransit;
 uintptr_t glpMsgTbl[MAX_PLRS];
diff --git a/Source/nthread.h b/Source/nthread.h
index e443e3c6e..b8f13201c 100644
--- a/Source/nthread.h
+++ b/Source/nthread.h
@@ -10,7 +10,7 @@
 
 namespace devilution {
 
-extern BYTE sgbNetUpdateRate;
+extern uint8_t sgbNetUpdateRate;
 extern size_t gdwMsgLenTbl[MAX_PLRS];
 extern uint32_t gdwTurnsInTransit;
 extern uintptr_t glpMsgTbl[MAX_PLRS];
diff --git a/Source/options.h b/Source/options.h
index 95c6d9fd9..dcd29966b 100644
--- a/Source/options.h
+++ b/Source/options.h
@@ -7,6 +7,7 @@
 #include <SDL_version.h>
 
 #include "engine/sound_defs.hpp"
+#include "miniwin/miniwin.h"
 #include "pack.h"
 #include "utils/enum_traits.h"
 #include "utils/stdcompat/optional.hpp"
diff --git a/Source/panels/spell_list.cpp b/Source/panels/spell_list.cpp
index 7e5ba6c22..b6e905e75 100644
--- a/Source/panels/spell_list.cpp
+++ b/Source/panels/spell_list.cpp
@@ -7,6 +7,7 @@
 #include "engine/palette.h"
 #include "engine/render/text_render.hpp"
 #include "inv_iterators.hpp"
+#include "miniwin/miniwin.h"
 #include "options.h"
 #include "panels/spell_icons.hpp"
 #include "player.h"
diff --git a/Source/pfile.cpp b/Source/pfile.cpp
index 9569ae891..13eb608ac 100644
--- a/Source/pfile.cpp
+++ b/Source/pfile.cpp
@@ -14,6 +14,7 @@
 #include "init.h"
 #include "loadsave.h"
 #include "menu.h"
+#include "miniwin/miniwin.h"
 #include "mpq/mpq_reader.hpp"
 #include "pack.h"
 #include "qol/stash.h"
diff --git a/Source/player.cpp b/Source/player.cpp
index a9775e7fd..d23e8049c 100644
--- a/Source/player.cpp
+++ b/Source/player.cpp
@@ -12,6 +12,7 @@
 #include "controls/plrctrls.h"
 #include "cursor.h"
 #include "dead.h"
+#include "miniwin/miniwin.h"
 #ifdef _DEBUG
 #include "debug.h"
 #endif
diff --git a/Source/qol/stash.cpp b/Source/qol/stash.cpp
index 28dec9e58..7f1dea7be 100644
--- a/Source/qol/stash.cpp
+++ b/Source/qol/stash.cpp
@@ -15,6 +15,7 @@
 #include "engine/size.hpp"
 #include "hwcursor.hpp"
 #include "minitext.h"
+#include "miniwin/miniwin.h"
 #include "stores.h"
 #include "utils/format_int.hpp"
 #include "utils/language.h"
diff --git a/Source/spells.cpp b/Source/spells.cpp
index 99b253319..c5f8cac36 100644
--- a/Source/spells.cpp
+++ b/Source/spells.cpp
@@ -7,6 +7,7 @@
 
 #include "control.h"
 #include "cursor.h"
+#include "miniwin/miniwin.h"
 #ifdef _DEBUG
 #include "debug.h"
 #endif
diff --git a/Source/stores.cpp b/Source/stores.cpp
index 891499a56..bb9efe231 100644
--- a/Source/stores.cpp
+++ b/Source/stores.cpp
@@ -2293,8 +2293,8 @@ void DrawSLine(const Surface &out, int sy)
 		width -= SidePanelSize.width;
 	}
 
-	BYTE *src = out.at(uiPosition.x + sx, uiPosition.y + 25);
-	BYTE *dst = out.at(uiPosition.x + sx, sy);
+	uint8_t *src = out.at(uiPosition.x + sx, uiPosition.y + 25);
+	uint8_t *dst = out.at(uiPosition.x + sx, sy);
 
 	for (int i = 0; i < 3; i++, src += out.pitch(), dst += out.pitch())
 		memcpy(dst, src, width);