diff --git a/dlls/win32s/w32skernel.c b/dlls/win32s/w32skernel.c
index 639d64bdc0f..c418caf9228 100644
--- a/dlls/win32s/w32skernel.c
+++ b/dlls/win32s/w32skernel.c
@@ -7,7 +7,6 @@
 
 #include <string.h>
 
-#include "wine/w32skrnl.h"
 #include "winbase.h"
 
 /***********************************************************************
diff --git a/include/Makefile.in b/include/Makefile.in
index 4b6c0f2eac2..ecfa271b8bd 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -117,10 +117,7 @@ INSTALLED_INCLUDES = \
 	wine/obj_shellview.h \
 	wine/obj_storage.h \
 	wine/port.h \
-	wine/undocshell.h \
 	wine/unicode.h \
-	wine/w32skrnl.h \
-	wine/winestring.h \
 	winerror.h \
 	wingdi.h \
 	wininet.h \
diff --git a/include/wine/w32skrnl.h b/include/wine/w32skrnl.h
deleted file mode 100644
index 3795ed2ac86..00000000000
--- a/include/wine/w32skrnl.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __WINE_WINE_W32SKRNL_H
-#define __WINE_WINE_W32SKRNL_H
-
-#include "windef.h"
-
-LPSTR WINAPI GetWin32sDirectory(void);
-DWORD WINAPI RtlNtStatusToDosError(DWORD error);
-
-#endif /* __WINE_WINE_W32SKRNL_H */
diff --git a/include/wine/winestring.h b/include/wine/winestring.h
index e732a807aa8..dcfe38724f3 100644
--- a/include/wine/winestring.h
+++ b/include/wine/winestring.h
@@ -10,6 +10,5 @@ LPSTR       WINAPI lstrcpynWtoA(LPSTR,LPCWSTR,INT);
 /* compatibility macros; will be removed some day, please don't use them */
 #define lstrcpyAtoW(dst,src) ((void)MultiByteToWideChar(CP_ACP,0,(src),-1,(dst),0x7fffffff))
 #define lstrcpyWtoA(dst,src) ((void)WideCharToMultiByte(CP_ACP,0,(src),-1,(dst),0x7fffffff,NULL,NULL))
-#define lstrncmpiA strncasecmp
 
 #endif /* __WINE_WINE_WINESTRING_H */
diff --git a/resources/sysres_Wa.rc b/resources/sysres_Wa.rc
index 97041dc7876..ae33978c343 100644
--- a/resources/sysres_Wa.rc
+++ b/resources/sysres_Wa.rc
@@ -5,8 +5,6 @@ LANGUAGE LANG_WALON, SUBLANG_DEFAULT
  * vos poloz scrîre a l' adresse emile <linux-wa@chanae.alphanet.ch>
  */
 
-#include <windows.h>
-
 SYSMENU MENU LOADONCALL MOVEABLE DISCARDABLE
 {
  MENUITEM "&Rifé", 61728