When the download is complete, double-click the installer file to launch the ESET Mail Security for Microsoft Exchange Server installer. A restart will be required during the installation of EMSX 6.
Select I accept the terms in the License Agreement and click Next.
Select Complete and click Next.
When prompted to restart your computer, click Yes.
After the computer restarts, the installation will resume. Once the installation is finished, you will be prompted to activate your product using a License Key. Enter your ESET-issued License Key into the blank field and click Activate (if you do not have your License Key, click here to have your license information sent to you).