2 files changed, 9 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index ac8a718..5df74ef 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,10 @@ VCEFLAGS	= /GX /TP /DPtW32NoCatchWarn
 #Structured Exceptions
 VSEFLAGS	= 
 
+# For Win64
+#CFLAGS	= /Bd /WX /W3 /MT /nologo /Yd /Zi /I. /D_WIN32_WINNT=0x400 /DPTW32_BUILD
+
+# For Win32
 CFLAGS	= /W3 /MT /nologo /Yd /Zi /I. /D_WIN32_WINNT=0x400 /DPTW32_BUILD
 
 OBJ=attr.obj \
diff --git a/private.c b/private.c
index 4f3bb80..88d7b1f 100644
--- a/private.c
+++ b/private.c
@@ -848,7 +848,7 @@ ptw32_sem_timedwait (sem_t * sem, const struct timespec * abstime)
 	  /*
            * subtract current system time from abstime
            */
-	  milliseconds = (abstime->tv_sec - currSysTime.time) * MILLISEC_PER_SEC;
+	  milliseconds = (DWORD)(abstime->tv_sec - currSysTime.time) * MILLISEC_PER_SEC;
 	  milliseconds += ((abstime->tv_nsec + (NANOSEC_PER_MILLISEC/2)) / NANOSEC_PER_MILLISEC) -
 	    currSysTime.millitm;
 
@@ -910,7 +910,11 @@ ptw32_throw(DWORD exception)
 {
 #if defined(_MSC_VER) && !defined(__cplusplus)
 
+#ifdef _WIN64
+  ULONG_PTR exceptionInformation[3];
+#else
   DWORD exceptionInformation[3];
+#endif
 
 #endif