diff --git a/Utilities/KWIML/ABI.h.in b/Utilities/KWIML/ABI.h.in
index c4121ff7a..0ec6d0ef5 100644
--- a/Utilities/KWIML/ABI.h.in
+++ b/Utilities/KWIML/ABI.h.in
@@ -216,7 +216,8 @@ suppression macro @KWIML@_ABI_NO_VERIFY was defined.
 # endif
 #endif
 #if !defined(@KWIML@_ABI_SIZEOF_LONG_LONG)
-# if defined(_LONGLONG) /* SGI, some GNU, perhaps others.  */
+# if defined(_LONGLONG) /* SGI, some GNU, perhaps others.  */ \
+  && !defined(_MSC_VER)
 #  define @KWIML@_ABI_SIZEOF_LONG_LONG 8
 # elif defined(_LONG_LONG) /* IBM XL, perhaps others.  */
 #  define @KWIML@_ABI_SIZEOF_LONG_LONG 8
diff --git a/Utilities/KWIML/test/CMakeLists.txt b/Utilities/KWIML/test/CMakeLists.txt
index febc99453..a2359cce1 100644
--- a/Utilities/KWIML/test/CMakeLists.txt
+++ b/Utilities/KWIML/test/CMakeLists.txt
@@ -35,6 +35,7 @@ if(KWIML_LANGUAGE_C)
   list(APPEND test_srcs
     test_ABI_C.c
     test_INT_C.c
+    test_include_C.c
     )
 endif()
 if(KWIML_LANGUAGE_CXX)
@@ -42,6 +43,7 @@ if(KWIML_LANGUAGE_CXX)
   list(APPEND test_srcs
     test_ABI_CXX.cxx
     test_INT_CXX.cxx
+    test_include_CXX.cxx
     )
 endif()
 
diff --git a/Utilities/KWIML/test/test.c b/Utilities/KWIML/test/test.c
index d71a28452..131c81f92 100644
--- a/Utilities/KWIML/test/test.c
+++ b/Utilities/KWIML/test/test.c
@@ -16,6 +16,8 @@ extern int test_ABI_C(void);
 extern int test_INT_C(void);
 extern int test_ABI_CXX(void);
 extern int test_INT_CXX(void);
+extern int test_include_C(void);
+extern int test_include_CXX(void);
 #ifdef __cplusplus
 } // extern "C"
 #endif
@@ -26,10 +28,12 @@ int main(void)
 #ifdef KWIML_LANGUAGE_C
   result = test_ABI_C() && result;
   result = test_INT_C() && result;
+  result = test_include_C() && result;
 #endif
 #ifdef KWIML_LANGUAGE_CXX
   result = test_ABI_CXX() && result;
   result = test_INT_CXX() && result;
+  result = test_include_CXX() && result;
 #endif
   return result? 0 : 1;
 }
diff --git a/Utilities/KWIML/test/test_include_C.c b/Utilities/KWIML/test/test_include_C.c
new file mode 100644
index 000000000..fb3e4cf7f
--- /dev/null
+++ b/Utilities/KWIML/test/test_include_C.c
@@ -0,0 +1,22 @@
+/*============================================================================
+  Kitware Information Macro Library
+  Copyright 2010-2011 Kitware, Inc.
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#include <stdio.h>
+
+/* Test KWIML header inclusion after above system headers.  */
+#include "test.h"
+#include KWIML_HEADER(ABI.h)
+#include KWIML_HEADER(INT.h)
+
+int test_include_C(void)
+{
+  return 1;
+}
diff --git a/Utilities/KWIML/test/test_include_CXX.cxx b/Utilities/KWIML/test/test_include_CXX.cxx
new file mode 100644
index 000000000..057b7c21c
--- /dev/null
+++ b/Utilities/KWIML/test/test_include_CXX.cxx
@@ -0,0 +1,22 @@
+/*============================================================================
+  Kitware Information Macro Library
+  Copyright 2010-2011 Kitware, Inc.
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#include <string>
+
+/* Test KWIML header inclusion after above system headers.  */
+#include "test.h"
+#include KWIML_HEADER(ABI.h)
+#include KWIML_HEADER(INT.h)
+
+extern "C" int test_include_CXX(void)
+{
+  return 1;
+}