diff --git a/src/Back.cpp b/src/Back.cpp
index 715ba0f1..0cc7a99e 100644
--- a/src/Back.cpp
+++ b/src/Back.cpp
@@ -26,7 +26,7 @@ BOOL InitBack(const char *fName, int type)
 
 	// Get width and height
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s.pbm", gDataPath, fName);
+	sprintf(path, "%s/%s.pbm", gDataPath, fName);
 
 	FILE *fp = fopen(path, "rb");
 	if (fp == NULL)
diff --git a/src/Config.cpp b/src/Config.cpp
index f940169b..8a0c3411 100644
--- a/src/Config.cpp
+++ b/src/Config.cpp
@@ -18,7 +18,7 @@ BOOL LoadConfigData(CONFIG *conf)
 
 	// Get path
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gModulePath, config_filename);
+	sprintf(path, "%s/%s", gModulePath, config_filename);
 
 	// Open file
 	FILE *fp = fopen(path, "rb");
diff --git a/src/Ending.cpp b/src/Ending.cpp
index b2b2511e..15494286 100644
--- a/src/Ending.cpp
+++ b/src/Ending.cpp
@@ -190,7 +190,7 @@ BOOL StartCreditScript()
 
 	// Open file
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gDataPath, credit_script);
+	sprintf(path, "%s/%s", gDataPath, credit_script);
 
 	Credit.size = GetFileSizeLong(path);
 	if (Credit.size == -1)
diff --git a/src/Game.cpp b/src/Game.cpp
index 80cd62b7..38c129b5 100644
--- a/src/Game.cpp
+++ b/src/Game.cpp
@@ -697,7 +697,7 @@ BOOL Game(void)
 	PlaySoundObject(7, -1);
 
 	char path[MAX_PATH];
-	sprintf(path, "%s\\npc.tbl", gDataPath);
+	sprintf(path, "%s/npc.tbl", gDataPath);
 
 	if (!LoadNpcTable(path))
 	{
diff --git a/src/GenericLoad.cpp b/src/GenericLoad.cpp
index 07bdab33..eb22e3e6 100644
--- a/src/GenericLoad.cpp
+++ b/src/GenericLoad.cpp
@@ -174,9 +174,9 @@ BOOL LoadGenericData()
 		bError = TRUE;
 	if (!MakeSurface_File("StageImage", SURFACE_ID_STAGE_ITEM))
 		bError = TRUE;
-	if (!MakeSurface_File("Npc\\NpcSym", SURFACE_ID_NPC_SYM))
+	if (!MakeSurface_File("Npc/NpcSym", SURFACE_ID_NPC_SYM))
 		bError = TRUE;
-	if (!MakeSurface_File("Npc\\NpcRegu", SURFACE_ID_NPC_REGU))
+	if (!MakeSurface_File("Npc/NpcRegu", SURFACE_ID_NPC_REGU))
 		bError = TRUE;
 	if (!MakeSurface_File("TextBox", SURFACE_ID_TEXT_BOX))
 		bError = TRUE;
diff --git a/src/Map.cpp b/src/Map.cpp
index 4cb169b6..4540c272 100644
--- a/src/Map.cpp
+++ b/src/Map.cpp
@@ -31,7 +31,7 @@ BOOL LoadMapData2(const char *path_map)
 
 	// Get path
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gDataPath, path_map);
+	sprintf(path, "%s/%s", gDataPath, path_map);
 
 	// Open file
 	FILE *fp = fopen(path, "rb");
@@ -75,7 +75,7 @@ BOOL LoadAttributeData(const char *path_atrb)
 {
 	// Open file
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gDataPath, path_atrb);
+	sprintf(path, "%s/%s", gDataPath, path_atrb);
 
 	FILE *fp = fopen(path, "rb");
 	if (fp == NULL)
diff --git a/src/MycParam.cpp b/src/MycParam.cpp
index 0b26899e..cd386ffc 100644
--- a/src/MycParam.cpp
+++ b/src/MycParam.cpp
@@ -446,7 +446,7 @@ BOOL SaveTimeCounter()
 
 	// Get last time
 	char path[MAX_PATH];
-	sprintf(path, "%s\\290.rec", gModulePath);
+	sprintf(path, "%s/290.rec", gModulePath);
 
 	FILE *fp = fopen(path, "rb");
 	if (fp)
@@ -509,7 +509,7 @@ int LoadTimeCounter()
 
 	// Open file
 	char path[MAX_PATH];
-	sprintf(path, "%s\\290.rec", gModulePath);
+	sprintf(path, "%s/290.rec", gModulePath);
 
 	FILE *fp = fopen(path, "rb");
 	if (!fp)
diff --git a/src/NpChar.cpp b/src/NpChar.cpp
index 3c36a6fc..ba3d9fd0 100644
--- a/src/NpChar.cpp
+++ b/src/NpChar.cpp
@@ -60,7 +60,7 @@ BOOL LoadEvent(const char *path_event)
 	EVENT eve;
 
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gDataPath, path_event);
+	sprintf(path, "%s/%s", gDataPath, path_event);
 
 	fp = fopen(path, "rb");
 	if (fp == NULL)
diff --git a/src/Profile.cpp b/src/Profile.cpp
index 2dec93fb..ebdc7566 100644
--- a/src/Profile.cpp
+++ b/src/Profile.cpp
@@ -28,7 +28,7 @@ const char *gProfileCode = "Do041220";
 BOOL IsProfile()
 {
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gModulePath, gDefaultName);
+	sprintf(path, "%s/%s", gModulePath, gDefaultName);
 
 	FILE *fp = fopen(path, "rb");
 	if (fp == NULL)
@@ -47,9 +47,9 @@ BOOL SaveProfile(const char *name)
 
 	// Get path
 	if (name)
-		sprintf(path, "%s\\%s", gModulePath, name);
+		sprintf(path, "%s/%s", gModulePath, name);
 	else
-		sprintf(path, "%s\\%s", gModulePath, gDefaultName);
+		sprintf(path, "%s/%s", gModulePath, gDefaultName);
 
 	// Open file
 	fp = fopen(path, "wb");
@@ -126,7 +126,7 @@ BOOL LoadProfile(const char *name)
 	if (name)
 		sprintf(path, "%s", name);
 	else
-		sprintf(path, "%s\\%s", gModulePath, gDefaultName);
+		sprintf(path, "%s/%s", gModulePath, gDefaultName);
 
 	// Open file
 	PROFILE profile;
diff --git a/src/Stage.cpp b/src/Stage.cpp
index 3552e46c..794764c4 100644
--- a/src/Stage.cpp
+++ b/src/Stage.cpp
@@ -139,26 +139,26 @@ BOOL TransferStage(int no, int w, int x, int y)
 
 	//Load tileset
 	char path[MAX_PATH];
-	sprintf(path, "%s\\Prt%s", path_dir, gTMT[no].parts);
+	sprintf(path, "%s/Prt%s", path_dir, gTMT[no].parts);
 	if (!ReloadBitmap_File(path, SURFACE_ID_LEVEL_TILESET))
 		bError = TRUE;
 
-	sprintf(path, "%s\\%s.pxa", path_dir, gTMT[no].parts);
+	sprintf(path, "%s/%s.pxa", path_dir, gTMT[no].parts);
 	if (!LoadAttributeData(path))
 		bError = TRUE;
 
 	//Load tilemap
-	sprintf(path, "%s\\%s.pxm", path_dir, gTMT[no].map);
+	sprintf(path, "%s/%s.pxm", path_dir, gTMT[no].map);
 	if (!LoadMapData2(path))
 		bError = TRUE;
 
 	//Load NPCs
-	sprintf(path, "%s\\%s.pxe", path_dir, gTMT[no].map);
+	sprintf(path, "%s/%s.pxe", path_dir, gTMT[no].map);
 	if (!LoadEvent(path))
 		bError = TRUE;
 
 	//Load script
-	sprintf(path, "%s\\%s.tsc", path_dir, gTMT[no].map);
+	sprintf(path, "%s/%s.tsc", path_dir, gTMT[no].map);
 	if (!LoadTextScript_Stage(path))
 		bError = TRUE;
 
@@ -171,11 +171,11 @@ BOOL TransferStage(int no, int w, int x, int y)
 	strcpy(path_dir, "Npc");
 
 	//Load NPC sprite sheets
-	sprintf(path, "%s\\Npc%s", path_dir, gTMT[no].npc);
+	sprintf(path, "%s/Npc%s", path_dir, gTMT[no].npc);
 	if (!ReloadBitmap_File(path, SURFACE_ID_LEVEL_SPRITESET_1))
 		bError = TRUE;
 
-	sprintf(path, "%s\\Npc%s", path_dir, gTMT[no].boss);
+	sprintf(path, "%s/Npc%s", path_dir, gTMT[no].boss);
 	if (!ReloadBitmap_File(path, SURFACE_ID_LEVEL_SPRITESET_2))
 		bError = TRUE;
 
diff --git a/src/TextScr.cpp b/src/TextScr.cpp
index f2e99df3..beb8f534 100644
--- a/src/TextScr.cpp
+++ b/src/TextScr.cpp
@@ -116,7 +116,7 @@ BOOL LoadTextScript2(const char *name)
 {
 	//Get path
 	char path[260];
-	sprintf(path, "%s\\%s", gDataPath, name);
+	sprintf(path, "%s/%s", gDataPath, name);
 
 	gTS.size = GetFileSizeLong(path);
 	if (gTS.size == -1)
@@ -145,7 +145,7 @@ BOOL LoadTextScript_Stage(const char *name)
 {
 	//Open Head.tsc
 	char path[MAX_PATH];
-	sprintf(path, "%s\\%s", gDataPath, "Head.tsc");
+	sprintf(path, "%s/%s", gDataPath, "Head.tsc");
 
 	long head_size = GetFileSizeLong(path);
 	if (head_size == -1)
@@ -162,7 +162,7 @@ BOOL LoadTextScript_Stage(const char *name)
 	fclose(fp);
 
 	//Open stage's .tsc
-	sprintf(path, "%s\\%s", gDataPath, name);
+	sprintf(path, "%s/%s", gDataPath, name);
 
 	long body_size = GetFileSizeLong(path);
 	if (body_size == -1)