LAMS 2.0 requires MySQL 5.0. Note that it will not work with MySQL 4 or below.
You can download MySQL 5.0 for Windows from the MySQL downloads website. The MySQL Essentials package is about 17 MB in size.
Installing and Configuring MySQL
For those interested, you can find out more about installing and configuring MySQL from the MySQL chapter on Windows installation. For LAMS usage, the defaults in the installer should be fine.
For those installing on Windows without the installer, please ensure you have these lines in your my.ini under the [mysqld] section:
If installing MySQL using the MySQL Windows installer the sql-mode will already be set for you. In this case the transaction-isolation setting will be configured by the LAMS Windows installer, so you don't have to worry about editing the my.ini file.