NServiceBus.LicenseManager.GetExistingLicense C# (CSharp) Method

        static string GetExistingLicense()
        {
            string existingLicense;

            //look in HKCU
            if (UserSidChecker.IsNotSystemSid() && new RegistryLicenseStore().TryReadLicense(out existingLicense))
            {
                return existingLicense;
            }

            //look in HKLM
            if (new RegistryLicenseStore(Registry.LocalMachine).TryReadLicense(out existingLicense))
            {
                return existingLicense;
            }

            return LicenseLocationConventions.TryFindLicenseText();
        }