Put because you might want to take a fully working install into several places to demonstrate the program or because you want to work on your blog theme while at the office or any other reason you may have.
1) Webserver On a Stick is apachewebserver with PHP and MySQ.
2) XAMPP Lite is a very reduced version of XAMPP (Apache distribution containing MySQL, PHP and Perl) with Apache 2.2.3 + PHP 5.1.6 (without PEAR) + MySQL 5.0.24a + phpMyAdmin 2.9.0.1 + Openssl 0.9.8d + SQLite 2.8.15.