When you purchase a license for an ESET business product, you will receive an email from ESET containing your ESET-issued Username and Password, License Key, and license (.lic) file(s), along with other important license information. This email is sent to the email address used at the time of purchase.
A License Key is used to activate version 6.x and later ESET business products and ESET Endpoint Security for Android 2.x. Your License Key can also be used to log into ESET Business Account, a license management tool used to manage all of your licenses in one place.
An ESET-issued Username and Password is used to activate version 5.x and earlier ESET business products. Activated products are able to receive the latest detection engine and program component updates. A Username and Password combination cannot be used to activate version 6.x business products, nor can it be used to activate ESET Endpoint Security for Android 2.x. Convert your Username and Password to a License Key.
License (.lic) files are issued as attachments to the emails users receive after purchasing their ESET business product(s). License files (for example, nod32.lic) are typically used to enable remote administration of a given ESET business product and contain the following information: product name, owner, number of licenses, and expiration date. What do I do with my ESET server and endpoint license files?