Does vRanger 5.3 require a new license key?
vRanger 5.3.x requires the same license key (with ".asc" extension) as vRanger 5.2 does. If you already have 5.2.x license, then you can use it with vRanger 5.3.x, otherwise please go to Licensing Assistance at https://support.quest.com/LicenseKey.aspx and request a new license file.