Step 1. Checking the availability of the required components and installing them

The welcome screen of the installation package checks if the required components are installed.

If the components are not installed, you can do one of the following:

Download and install the .Net Framework 3.5 SP1 component by clicking the Install.Net Framework 3.5 SP1 link (if the component is not installed already).
The computer must be restarted after .NET Framework 3.5 SP1 installation. If you continue setup without restart, it may cause problems in the operation of Kaspersky Security.
Download and install the required component Microsoft Management Console 3.0 by clicking the Install MMC 3.0 link (if the component is not installed).
Microsoft Management Console 3.0 (MMC 3.0) is a part of the operating system in Microsoft Windows Server 2003 R2 and later versions. To install the application on earlier versions of Microsoft Windows Server, update the Microsoft Management Console to version 3.0 by clicking the Install MMC 3.0 link.

Click the Kaspersky Security 9.0 for Microsoft Exchange Servers link to start the setup wizard.

This opens the welcome window of the install wizard.