Index: trunk/zoo-project/zoo-kernel/service.h
===================================================================
--- trunk/zoo-project/zoo-kernel/service.h	(revision 838)
+++ trunk/zoo-project/zoo-kernel/service.h	(revision 840)
@@ -39,4 +39,9 @@
 #if defined(_MSC_VER) && _MSC_VER < 1900
 #define snprintf _snprintf
+#endif
+#if defined(_MSC_VER) && _MSC_VER < 1800
+#define false 0
+#define true 1
+#define bool int
 #endif
 #define zStrdup _strdup