Important:
To run the Forefront Protection 2010 for Exchange Server (FPE) installation program on Exchange Server 2007, you must have Local Admin privileges. For information about requirements when installing FPE on Exchange Server 2010, see Security credentials required for installing on Exchange Server 2010.
Note:
FPE ships with the Microsoft Forefront Server Protection Management Pack for Microsoft System Center Operations Manager 2007. The management pack is an optional component that works with Operations Manager 2007 and is used to monitor the health of your FPE systems. FPE works correctly if the management pack is not installed.

You can run the FPE installer by:

Each option caters to a different scenario, but all options ensure the following:

Related Topics

Upgrading the productApplying service packs and rollups in a standalone environment

Concepts

Prerequisites check
Deploying the product with SCCM
Installing in a Hyper-V virtual environment