#define NTDDI_WIN7 0x06010000
/* Version Fields in NTDDI_VERSION */
-#define OSVERSION_MASK 0xFFFF0000
-#define SPVERSION_MASK 0x0000FF00
-#define SUBVERSION_MASK 0x000000FF
+#define OSVERSION_MASK 0xFFFF0000UL
+#define SPVERSION_MASK 0x0000FF00UL
+#define SUBVERSION_MASK 0x000000FFUL
/* Macros to Extract Version Fields From NTDDI_VERSION */
#define OSVER(Version) ((Version) & OSVERSION_MASK)