diff --git a/code/nel/src/misc/sheet_id.cpp b/code/nel/src/misc/sheet_id.cpp
index 0ff90b1f8..9a9b8813f 100644
--- a/code/nel/src/misc/sheet_id.cpp
+++ b/code/nel/src/misc/sheet_id.cpp
@@ -157,7 +157,7 @@ bool CSheetId::buildSheetId(const std::string& sheetName)
 			{
 				_FileExtensions.push_back(sheetType);
 				_DevSheetIdToName.push_back(std::vector<std::string>());
-				typeId = _FileExtensions.size() - 1;
+				typeId = (uint32)_FileExtensions.size() - 1;
 				_DevTypeNameToId[sheetType] = typeId;
 				std::string unknownNewType = std::string("unknown." + sheetType);
 				_DevSheetIdToName[typeId].push_back(unknownNewType);
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/mission_compiler/mission_compiler_main_window.cpp b/code/nel/tools/3d/object_viewer_qt/src/plugins/mission_compiler/mission_compiler_main_window.cpp
index 9a3f4fe61..0c791aa7c 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/mission_compiler/mission_compiler_main_window.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/mission_compiler/mission_compiler_main_window.cpp
@@ -381,7 +381,7 @@ bool MissionCompilerMainWindow::parsePrimForMissions(NLLIGO::IPrimitive const *p
 {
 	std::string value;
 	// if the node is a mission parse it
-	if (prim->getPropertyByName("class",value) && !NLMISC::stricmp(value.c_str(),"mission") )
+	if (prim->getPropertyByName("class",value) && !NLMISC::nlstricmp(value.c_str(),"mission") )
 	{
 		std::string name;
 		prim->getPropertyByName("name",name);
diff --git a/code/nel/tools/3d/tile_edit_qt/pic/PIC_System.c b/code/nel/tools/3d/tile_edit_qt/pic/PIC_System.c
index 4e97fed78..498e5d302 100644
--- a/code/nel/tools/3d/tile_edit_qt/pic/PIC_System.c
+++ b/code/nel/tools/3d/tile_edit_qt/pic/PIC_System.c
@@ -8,8 +8,8 @@
 
 #define PIC_ERRSIZE		256
 
-static unsigned long	PIC_Sys_MEM_Allocated;
-static unsigned long	PIC_Sys_MEM_NbAllocs;
+static size_t	PIC_Sys_MEM_Allocated;
+static size_t	PIC_Sys_MEM_NbAllocs;
 
 #if defined(__APPLE__)
 #define _msize malloc_size
@@ -31,7 +31,7 @@ void *Pic_malloc(unsigned long size)
 	return(mem);
 }
 /* ----- */
-void *Pic_calloc(unsigned long count, unsigned long size)
+void *Pic_calloc(size_t count, size_t size)
 {
 	void	*mem;
 	mem=calloc(count,size);
@@ -45,24 +45,24 @@ void *Pic_calloc(unsigned long count, unsigned long size)
 /* ----- */
 void Pic_free(void *memblock)
 {
-	unsigned long	size;
+	size_t	size;
 	size=_msize(memblock);
 	PIC_Sys_MEM_Allocated-=size;
 	PIC_Sys_MEM_NbAllocs--;
 	free(memblock);
 }
 /* ----- */
-unsigned long Pic__msize(void *memblock)
+size_t Pic__msize(void *memblock)
 {
 	return(_msize(memblock));
 }
 /* ----- */
-unsigned long PIC_GetMemNbAllocs(void)
+size_t PIC_GetMemNbAllocs(void)
 {
 	return(PIC_Sys_MEM_NbAllocs);
 }
 /* ----- */
-unsigned long PIC_GetMemAllocated(void)
+size_t PIC_GetMemAllocated(void)
 {
 	return(PIC_Sys_MEM_Allocated);
 }
@@ -74,7 +74,7 @@ static unsigned char	PIC_ErrorString[PIC_ERRSIZE];
 static unsigned char	PIC_Sys_FnctActive=0;
 static void				(*PIC_Sys_Fnct)(void);
 
-void Pic_SetError(unsigned char *msg, ...)
+void Pic_SetError(const char *msg, ...)
 {
 	unsigned char	curerr[PIC_ERRSIZE],olderr[PIC_ERRSIZE];
 	va_list			args;
diff --git a/code/nel/tools/3d/tile_edit_qt/pic/Pic_BMP.c b/code/nel/tools/3d/tile_edit_qt/pic/Pic_BMP.c
index 53dc957f5..1119766da 100644
--- a/code/nel/tools/3d/tile_edit_qt/pic/Pic_BMP.c
+++ b/code/nel/tools/3d/tile_edit_qt/pic/Pic_BMP.c
@@ -117,7 +117,7 @@ unsigned long Pic_BMP_Write(	const char *FileName,
 
 /* ---------------------------------------------------------------------------------------------------------------------------------- */
 
-unsigned long Pic_BMP_Read(	unsigned char *FileName,
+unsigned long Pic_BMP_Read(	const char *FileName,
 							unsigned char **ppPal, unsigned char **ppDatas,
 							unsigned long *pWidth, unsigned long *pHeight, 
 							unsigned long *pDepth)
diff --git a/code/nel/tools/3d/tile_edit_qt/pic/Pic_JPG.c b/code/nel/tools/3d/tile_edit_qt/pic/Pic_JPG.c
index f13f93b13..dc22afadf 100644
--- a/code/nel/tools/3d/tile_edit_qt/pic/Pic_JPG.c
+++ b/code/nel/tools/3d/tile_edit_qt/pic/Pic_JPG.c
@@ -31,7 +31,7 @@ void my_error_exit(j_common_ptr cinfo)
 
 /* ---------------------------------------------------------------------------------------------------------------------------------- */
 
-unsigned long Pic_JPG_Read(unsigned char *FileName, unsigned char **ppPal, unsigned char **ppDatas, unsigned long *w, unsigned long *h)
+unsigned long Pic_JPG_Read(const char *FileName, unsigned char **ppPal, unsigned char **ppDatas, unsigned long *w, unsigned long *h)
 {
 	struct jpeg_decompress_struct	cinfo;
 	struct my_error_mgr				jerr;
@@ -114,7 +114,7 @@ unsigned long Pic_JPG_Read(unsigned char *FileName, unsigned char **ppPal, unsig
 
 /* ---------------------------------------------------------------------------------------------------------------------------------- */
 
-unsigned long Pic_JPG_Write(unsigned char *FileName, unsigned long Qual, unsigned char *pDatas, unsigned long w, unsigned long h)
+unsigned long Pic_JPG_Write(const char *FileName, unsigned long Qual, unsigned char *pDatas, unsigned long w, unsigned long h)
 {
 	struct jpeg_compress_struct	cinfo;
 	struct my_error_mgr			jerr;
diff --git a/code/nel/tools/3d/tile_edit_qt/pic/Pic_TGA.c b/code/nel/tools/3d/tile_edit_qt/pic/Pic_TGA.c
index 5f598d4eb..4c458dc83 100644
--- a/code/nel/tools/3d/tile_edit_qt/pic/Pic_TGA.c
+++ b/code/nel/tools/3d/tile_edit_qt/pic/Pic_TGA.c
@@ -27,7 +27,7 @@ typedef struct TGA_HEADER
 
 /* ---------------------------------------------------------------------------------------------------------------------------------- */
 
-unsigned long Pic_TGA_Read(	unsigned char *FileName,
+unsigned long Pic_TGA_Read(	const char *FileName,
 							unsigned char **ppPal, unsigned char **ppDatas,
 							unsigned long *pWidth, unsigned long *pHeight, 
 							unsigned long *pDepth)
@@ -140,7 +140,7 @@ unsigned long Pic_TGA_Read(	unsigned char *FileName,
 
 /* ---------------------------------------------------------------------------------------------------------------------------------- */
 
-unsigned long Pic_TGA_Write(	unsigned char *FileName, 
+unsigned long Pic_TGA_Write(	const char *FileName, 
 								unsigned char *pPal,unsigned char *pDatas, 
 								unsigned long w, unsigned long h, unsigned long d)
 {
diff --git a/code/nel/tools/3d/tile_edit_qt/pic/pic_private.h b/code/nel/tools/3d/tile_edit_qt/pic/pic_private.h
index 53166396d..96b7a0e94 100644
--- a/code/nel/tools/3d/tile_edit_qt/pic/pic_private.h
+++ b/code/nel/tools/3d/tile_edit_qt/pic/pic_private.h
@@ -25,28 +25,28 @@ typedef struct PIC_PICTURE
  */
 
 	
-extern unsigned long	Pic_JPG_Read(	unsigned char *FileName, 
+extern unsigned long	Pic_JPG_Read(	const char *FileName, 
 										unsigned char **ppPal, unsigned char **ppDatas, 
 										unsigned long *w, unsigned long *h);
 
-extern unsigned long	Pic_JPG_Write(	unsigned char *FileName, 
+extern unsigned long	Pic_JPG_Write(	const char *FileName, 
 										unsigned long Qual, 
 										unsigned char *pDatas, 
 										unsigned long w, unsigned long h);
 /*
  * TGA
  */
-extern unsigned long	Pic_TGA_Read(	unsigned char *FileName,
+extern unsigned long	Pic_TGA_Read(	const char *FileName,
 										unsigned char **ppPal, unsigned char **ppDatas,
 										unsigned long *pWidth, unsigned long *pHeight, 
 										unsigned long *pDepth);
-extern unsigned long	Pic_TGA_Write(	unsigned char *FileName, 
+extern unsigned long	Pic_TGA_Write(	const char *FileName, 
 										unsigned char *pPal,unsigned char *pDatas, 
 										unsigned long w, unsigned long h, unsigned long d);
 /*
  * BMP
  */
-extern unsigned long	Pic_BMP_Read(	unsigned char *FileName,
+extern unsigned long	Pic_BMP_Read(	const char *FileName,
 										unsigned char **ppPal, unsigned char **ppDatas,
 										unsigned long *pWidth, unsigned long *pHeight, 
 										unsigned long *pDepth);
@@ -57,11 +57,11 @@ extern unsigned long	Pic_BMP_Write(	const char *FileName,
 /*
  * System
  */
-extern void*			Pic_malloc(unsigned long size);
-extern void*			Pic_calloc(unsigned long count, unsigned long size);
+extern void*			Pic_malloc(size_t size);
+extern void*			Pic_calloc(size_t count, size_t size);
 extern void				Pic_free(void *memblock);
-extern unsigned long	Pic__msize(void *memblock);
-extern void				Pic_SetError(unsigned char *msg, ...);
+extern size_t			Pic__msize(void *memblock);
+extern void				Pic_SetError(const char *msg, ...);
 
 /* ---------------------------------------------------------------------------------------------------------------------------------- */