diff --git a/rtl/win/wininc/base.inc b/rtl/win/wininc/base.inc
index d49ac8fdbf..446ea3ecda 100644
--- a/rtl/win/wininc/base.inc
+++ b/rtl/win/wininc/base.inc
@@ -83,7 +83,9 @@
 
 
      INT_PTR = PtrInt;
+     PINT_PTR = ^INT_PTR;
      UINT_PTR = PtrUInt;
+     PUINT_PTR = ^UINT_PTR;
      LONG_PTR = PtrInt;
      ULONG_PTR = PtrUInt;
      DWORD_PTR   = ULONG_PTR;
diff --git a/rtl/win/wininc/defines.inc b/rtl/win/wininc/defines.inc
index 96727e3611..7165bf3579 100644
--- a/rtl/win/wininc/defines.inc
+++ b/rtl/win/wininc/defines.inc
@@ -2309,6 +2309,7 @@
      SC_MANAGER_MODIFY_BOOT_CONFIG = 32;
   { PostMessage  }
      HWND_BROADCAST = HWND($FFFF);
+     WND_MESSAGE = HWND(-3);
 
   { PrepareTape  }