diff --git a/visualc/include/ngspice/config.h b/visualc/include/ngspice/config.h
index b2ebef3aa..821ee48a2 100644
--- a/visualc/include/ngspice/config.h
+++ b/visualc/include/ngspice/config.h
@@ -1,6 +1,6 @@
 /* config.h.  Adoted from config which was generated by configure using MSYS and MINGW.  */
-/* Special consideration have been given to MS Visual Studio 2008 requirements.  */
-/* HVo Jan. 2014 */
+/* Special consideration have been given to MS Visual Studio 2015 requirements.  */
+/* HVo Oct. 2015 */
 
 /* Support for Verilog-A(MS) models */
 /* #undef ADMS */
@@ -12,7 +12,7 @@
 /* #undef CAPBYPASS */
 
 /* The CIDER enhancements */
-#define CIDER 1
+/* #define CIDER 1
 
 /* Define to 1 if the `closedir' function returns void instead of `int'. */
 /* #undef CLOSEDIR_VOID */
@@ -71,6 +71,9 @@
 /* Define to 1 if you have the `asinh' function. */
 /* #undef HAVE_ASINH */
 
+/* Define to 1 if you have the `asprintf' function. */
+/* #undef HAVE_ASPRINTF */
+
 /* Define to 1 if you have the `atanh' function. */
 /* #undef HAVE_ATANH */
 
@@ -168,6 +171,12 @@
 /* Define if we want garbage collection enabled */
 /* #undef HAVE_LIBGC */
 
+/* Define to 1 if you have the <libgen.h> header file. */
+/* #undef HAVE_LIBGEN_H */
+
+/* Define to 1 if you have the <libiberty.h> header file. */
+/* #undef HAVE_LIBIBERTY_H */
+
 /* Define to 1 if you have the <libintl.h> header file. */
 /* #undef HAVE_LIBINTL_H */
 
@@ -533,7 +542,7 @@
 #define WITH_PSS /**/
 
 /* The xspice enhancements */
-#define XSPICE 1
+//#define XSPICE 1
 
 /* Define to 1 if the X Window System is missing or not being used. */
 #define X_DISPLAY_MISSING 1