Make windows 9x (ascii) build nag when run on other windows versions.

The idea is to prevent people from using the win9x fix when there are built issues with the Unicode version.

src/main.cpp

@@ -65,6 +65,21 @@ void write_stdout(const String& str) {
 	}
 }
 
+// ----------------------------------------------------------------------------- : Checks
+
+void nag_about_ascii_version() {
+	#if !defined(UNICODE) && defined(__WXMSW__)
+		// windows 2000/XP/Vista/... users shouldn't use the 9x version
+		OSVERSIONINFO info;
+		info.dwOSVersionInfoSize = sizeof(info);
+		GetVersionEx(&info);
+		if (info.dwMajorVersion >= 5) {
+			handle_warning(_("This build of Magic Set Editor is intended for Windows 95/98/ME systems.\n")
+			               _("It is recommended that you download the appropriate MSE version for your Windows version."));
+		}
+	#endif
+}
+
 // ----------------------------------------------------------------------------- : Initialization
 
 int MSE::OnRun() {
@@ -83,6 +98,7 @@ int MSE::OnRun() {
 		settings.read();
 		the_locale = Locale::byName(settings.locale);
 		check_updates();
+		nag_about_ascii_version();
 		
 		// interpret command line
 		if (argc > 1) {