function PrintLabel(addr)
{
    try
    {
        netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
       
        // create and use the nsDymoAddIn object
        const DymoAddInCID = "@dymo.com/sdk/nsDymoAddIn;1";
        DymoAddIn = Components.classes[DymoAddInCID].createInstance();
        DymoAddIn = DymoAddIn.QueryInterface(Components.interfaces.nsIDymoAddIn2);

        // create and use the nsDymoLabels object
        const DymoLabelsCID = "@dymo.com/sdk/nsDymoLabels;1";
        DymoLabels = Components.classes[DymoLabelsCID].createInstance();
        DymoLabels = DymoLabels.QueryInterface(Components.interfaces.nsIDymoLabels);

            if (DymoAddIn.Open('C:\\Program Files\\Dymo Label\\Label Files\\Address  (30252, 30320).LWT'))
            {
                DymoLabels.SetAddress(1, addr);
                DymoAddIn.Print(1, true);
            }
            else if (DymoAddIn.Open('C:\\Documents and Settings\\All Users\\Documents\\DYMO Label\\Label Files\\Address (30252, 30320).LWL'))
            {
                DymoLabels.SetAddress(1, addr);
                DymoAddIn.Print(1, true);
            }
            else if (DymoAddIn.Open('C:\\Program Files\\Dymo Label\\Label Files\\Address  (30252, 30320).LWT'))
            {
                DymoLabels.SetAddress(1, addr);
                DymoAddIn.Print(1, true);
            }
            else
                alert('Error: Label file Not Found!');
    }
    catch (err)
    {
        alert(err);
        return;
    }
}