diff --git a/Makefile.win.inc b/Makefile.win.inc
index e99c5b0..159da64 100644
--- a/Makefile.win.inc
+++ b/Makefile.win.inc
@@ -13,9 +13,9 @@ LINK_WITH_CONFIG4CPP=	$(LIB_DIR)\$(LIB_CONFIG4CPP)
 #--------
 # Append either DEBUG_OPTIONS or OPTIMISE_OPTIONS to CXX_FLAGS
 #--------
-DEBUG_OPTIONS=		/GZ /DDEBUG
+DEBUG_OPTIONS=		/RTC1 /DDEBUG
 OPTIMISE_OPTIONS=	/O2 /DNDEBUG
-CXX_FLAGS=		/I$(INC_DIR) /DWIN32 /GX /Zi /nologo $(DEBUG_OPTIONS)
+CXX_FLAGS=		/I$(INC_DIR) /DWIN32 /EHsc /Zi /nologo $(DEBUG_OPTIONS)
 
 
 LINK_FLAGS=	
diff --git a/src/Makefile.win b/src/Makefile.win
index 68346c1..d018330 100644
--- a/src/Makefile.win
+++ b/src/Makefile.win
@@ -30,6 +30,7 @@ LIB_HDR_FILES	= \
 		SchemaTypeBoolean.h \
 		SchemaTypeDummy.h \
 		SchemaTypeDurationMilliseconds.h \
+		SchemaTypeDurationMicroseconds.h \
 		SchemaTypeDurationSeconds.h \
 		SchemaTypeEnum.h \
 		SchemaTypeFloat.h \
@@ -74,6 +75,7 @@ LIB_OBJ_FILES	= \
 		SchemaType.obj \
 		SchemaTypeBoolean.obj \
 		SchemaTypeDurationMilliseconds.obj \
+		SchemaTypeDurationMicroseconds.obj \
 		SchemaTypeDurationSeconds.obj \
 		SchemaTypeEnum.obj \
 		SchemaTypeFloat.obj \