+            s_version.verMaj = info.dwMajorVersion;
+            s_version.verMin = info.dwMinorVersion;
+        }
+        else // GetVersionEx() failed
+        {
+            s_version.initialized = -1;
+        }
+    }
+
+    if ( s_version.initialized == 1 )
+    {
+        if ( verMaj )
+            *verMaj = s_version.verMaj;
+        if ( verMin )
+            *verMin = s_version.verMin;
+    }
+
+    // this works even if we were not initialized successfully as the initial
+    // values of this field is 0 which is wxOS_UNKNOWN and exactly what we need
+    return s_version.os;
+}
+
+wxWinVersion wxGetWinVersion()
+{
+    int verMaj,
+        verMin;
+    switch ( wxGetOsVersion(&verMaj, &verMin) )
+    {
+        case wxOS_WINDOWS_9X:
+            if ( verMaj == 4 )
+            {
+                switch ( verMin )
+                {
+                    case 0:
+                        return wxWinVersion_95;
+
+                    case 10:
+                        return wxWinVersion_98;
+
+                    case 90:
+                        return wxWinVersion_ME;
+                }
+            }
+            break;
+
+        case wxOS_WINDOWS_NT:
+            switch ( verMaj )
+            {
+                case 3:
+                    return wxWinVersion_NT3;
+
+                case 4:
+                    return wxWinVersion_NT4;
+
+                case 5:
+                    switch ( verMin )
+                    {
+                        case 0:
+                            return wxWinVersion_2000;
+
+                        case 1:
+                            return wxWinVersion_XP;
+
+                        case 2:
+                            return wxWinVersion_2003;
+                    }