Figure 1
MySQL server 5.0, and later versions.
MySQL ODBC Driver 3.51, and later odbc versions.
First, you need to install mysql server and odbc client. If your server is 64bit, you need to install both 32bit and 64bit odbc clients.
Once your mysql is ready, you can proceed to install WFilter. As in Figure 1, choose "MYSQL" as the target database type.
As in Figure 2, input database ip address, user and password. (The user shall have create database/table priviledge.)
It's because WFilter's installation package is 32bit, while the WFilter core monitoring process is 64bit. So both odbc clients are required.