How to check for a valid License for a GH Plug-In

Hi,

I've been creating a plug-In and would like to license it.

Where in the Code woud I do that.

I wrote this in the AssemlyInfo

public override GH_LibraryLicense License
        {
            get
            {
                Licensing lic = new Licensing();

                GH_LibraryLicense licenseType = GH_LibraryLicense.unset;

                if (lic.isLicensed)
                { licenseType = GH_LibraryLicense.commercial; }
                else
                {
                    licenseType = GH_LibraryLicense.expired;
                }
               
                return licenseType ;
            }
        }

Licensing beeing my own class handeling the licensing

But this seems to not do the trick. I thought / hoped that setting it to experied, would somehow load protect the component.

I'm looking for something like the

protected override Rhino.PlugIns.LoadReturnCode OnLoad(ref string errorMessage)

in "regular" Rhino plug-ins

Thanks

Karl