Setup has a built-in prerequisites check that runs every time you launch the Setup Wizard or run an unattended installation. The prerequisites check ensures that the environment in which you are deploying Microsoft Forefront Protection 2010 for SharePoint (FPSP) can support the product. The prerequisites check verifies that the system requirements are already installed before you proceed with the installation. If they are not installed, you are informed that you must download and install the required features before continuing.

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