public class ActiveLockGenerator
{
    string m_installation_code;
    string m_app_name;
    string m_app_version;
    string m_software_code;
    string m_features;
    string m_products_path;
    string m_activation_code;
    EventWaitHandle m_event_wait_handle;

    public ActiveLockGenerator(EventWaitHandle event_wait_handle, string products_path, string installation_code, string app_name, string app_version, string software_code, string features)
    {
        m_installation_code = installation_code;
        m_app_name = app_name;
        m_app_version = app_version;
        m_software_code = software_code;
        m_features = features;

        m_products_path = products_path;
        m_event_wait_handle = event_wait_handle;
    }

    public void GenerateActivationCode()
    {
        try
        {
            ActiveLock3.IALUGenerator GeneratorInstance;
            ActiveLock3.AlugenGlobals AlugenGlobals = new ActiveLock3.AlugenGlobals();
            ActiveLock3.ProductInfo ProductInfo = new ActiveLock3.ProductInfo();
            ActiveLock3.Globals Globals = new ActiveLock3.Globals();
            ActiveLock3.ProductLicense ProductLicense;

            // Generate activation code
            ProductLicense = Globals.CreateProductLicense(m_app_name, m_app_version, m_software_code, ActiveLock3.LicFlags.alfSingle, ActiveLock3.ALLicType.allicPermanent, "", m_features, DateTime.Now.AddDays(365), "", DateTime.Now, "", 1, "");

            ActiveLock3.ProductsStoreType store_type = ActiveLock3.ProductsStoreType.alsINIFile;
            GeneratorInstance = AlugenGlobals.GeneratorInstance(ref store_type);
            GeneratorInstance.StoragePath = m_products_path;
            
            ProductInfo = GeneratorInstance.RetrieveProduct(app_name, app_version);
            m_activation_code = GeneratorInstance.GenKey(ref ProductLicense, m_installation_code, m_features) + "aLck" + m_installation_code;
        }
        catch (Exception ex)
        {
            m_activation_code = ex.Message;
        }

        m_event_wait_handle.Set();
    }

    public string GetActivationCode()
    {
        return m_activation_code;
    }
}

AutoResetEvent event_wait_handle = new AutoResetEvent(false);
ActiveLockGenerator active_lock_gen = new ActiveLockGenerator(event_wait_handle, Server.MapPath("~") + "\\products.ini", installation_code, features);

// Execute our ActiveLock calls in a single-threaded apartment thread
Thread thread = new Thread(new ThreadStart(active_lock_gen.GenerateActivationCode));
thread.SetApartmentState(ApartmentState.STA);

// Start the thread and wait for it to finish
thread.Start();
event_wait_handle.WaitOne();
event_wait_handle.Reset();

activation_code = active_lock_gen.GetActivationCode();