Index: C:/ROS/reactos-clean/reactos/include/psdk/winnt.h
===================================================================
--- include/psdk/winnt.h	(revision 64019)
+++ include/psdk/winnt.h	(working copy)
@@ -743,10 +743,10 @@
 
 /* Multiplication and Shift Operations. Note: we don't use inline
    asm functions, the compiler can optimize this better. */
-#define Int32x32To64(a,b) (((__int64)(long)(a))*((__int64)(long)(b)))
-#define UInt32x32To64(a,b) ((unsigned __int64)(unsigned int)(a)*(unsigned __int64)(unsigned int)(b))
+#define Int32x32To64(a,b) (((__int64)(a))*((__int64)(b)))
+#define UInt32x32To64(a,b) ((unsigned __int64)(a)*(unsigned __int64)(b))
 
-#if defined(MIDL_PASS)|| defined(RC_INVOKED) || defined(_M_CEE_PURE)
+#if defined(MIDL_PASS)|| defined(RC_INVOKED) || defined(_M_CEE_PURE) || 1
 /* Use native math */
  #define Int64ShllMod32(a,b) ((unsigned __int64)(a)<<(b))
  #define Int64ShraMod32(a,b) (((__int64)(a))>>(b))