I tried Lite C but did not really find it useful for me. It's very interesting as a demo but there are too many restrictions for me (i.e., no Level Ed and although the old maps work I cannot incorporate scripts into it). What I need is a more complete and Windows XP-compatible version. I don't need all the new features.

My dream would be purchasing A5 Extra for a low amount of money but I did not find any offers, yet (I know it's too old...). Do you happen to know if A5 is Windows XP compatible?