Reinstall vs. backup wordpress

Hey everyone, thanks for your time!

I am reinstalling one of my XP machines and I would like to preserve the XAMPP/Wordpress configuration. I am using XAMPP for WordPress development. So I have WordPress installed on top of XAMPP using phpMyAdmin/mySQL. I also configured MercuryMail with my local Thunderbird client and PHPList for testing e-mail. Please let me know if you think it would be easier to reinstall everything or if it is possible to save my configuration/reload it to the new system. What are your thoughts on this?