diff --git a/src/frontend/com_sysinfo.c b/src/frontend/com_sysinfo.c
index e8af139bf..4b8879ebf 100644
--- a/src/frontend/com_sysinfo.c
+++ b/src/frontend/com_sysinfo.c
@@ -21,15 +21,10 @@
 
 #define WIN32_LEAN_AND_MEAN
 
-#ifdef __MINGW32__  /* access to GlobalMemoryStatusEx in winbase.h:1558 */
-#define WINVER 0x0500
-#endif
-
 #undef BOOLEAN
 #include "windows.h"
-#if defined(__MINGW32__) || (_MSC_VER > 1200) /* Exclude VC++ 6.0 from using the psapi */
 #include <psapi.h>
-#endif
+
 #endif
 
 #include "stdio.h"
diff --git a/src/frontend/resource.c b/src/frontend/resource.c
index f84db2135..2353da7c5 100644
--- a/src/frontend/resource.c
+++ b/src/frontend/resource.c
@@ -41,9 +41,6 @@ Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
 
 #define WIN32_LEAN_AND_MEAN
 
-#ifdef __MINGW32__  /* access to GlobalMemoryStatusEx in winbase.h:1558 */
-#define WINVER 0x0500
-#endif
 /*
  * The ngspice.h file included above defines BOOLEAN (via bool.h) and this
  * clashes with the definition obtained from windows.h (via winnt.h).
@@ -53,13 +50,7 @@ Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
  */
 #undef BOOLEAN
 #include <windows.h>
-/* At least Windows 2000 is needed
- * Undefine _WIN32_WINNT 0x0500 if you want to compile under Windows ME
- * and older (not tested under Windows ME or 98!)
- */
-#if defined(__MINGW32__) || (_MSC_VER > 1200) /* Exclude VC++ 6.0 from using the psapi */
 #include <psapi.h>
-#endif
 
 #endif /* HAVE_WIN32 */