If you intend to install the Scanner and the Control Center on the same computer, it does not matter in what order you install them. The documentation assumes that you install the Scanner before you install the Control Center.
The installer enables you to change the location of the installation directory. However, the directory must already exist before you begin installation. The installer program does not support creating a new folder during installation. If you upgrade, the installer reinstalls your existing software in the same location as the previous version. If current versions of MySQL and Tomcat exist, they are not reinstalled.
If you install the Server component of the Scanner, the installer prompts you to register the product. Symantec Message Filter requires multiple licenses for full functionality. One license activates scanning, while the other license updates rules. During installation, you can only install one license. You can install the additional license after installation is complete. If you upgrade from Symantec Brightmail AntiSpam version 6.0.5 or Symantec Brightmail Message Filter version 6.1.x or 6.2.x and have a license already registered, you do not need to re-register your license.
Tasks that you should perform before you install Symantec Message Filter are as follows (if they apply to your configuration):
If you upgrade from a previous version of Symantec Message Filter, review the information on migration. Pay particular attention to the information about the requirement to upgrade your Scanners before you upgrade the Control Center.