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"License.dll "的方法和属性只有在你保护了你的软件后才能返回正确的值。在保护之后，就不再需要 "License.dll "库了。

举个栗子：

1. VS中引入License.dll，代码中 using License;

2. 检查授权文件是否可用

public bool IsValidLicenseAvailable()
    {
        return License.Status.Licensed;
    }

 public void ReadAdditonalLicenseInformation()
    {
        /* Check first if a valid license file is found */
        if (License.Status.Licensed)
        {
            /* Read additional license information */
            for (int i = 0; i < License.Status.KeyValueList.Count; i++)
            {
                string key = License.Status.KeyValueList.GetKey(i).ToString();
                string value = License.Status.KeyValueList.GetByIndex(i).ToString();
            }
        }
    }

public void CheckEvaluationLock()
    {
        bool lock_enabled = License.Status.Evaluation_Lock_Enabled;
        EvaluationType ev_type = License.Status.Evaluation_Type;
        int time = License.Status.Evaluation_Time;
        int time_current = License.Status.Evaluation_Time_Current;
    }

public void CheckExpirationDateLock()
    {
        bool lock_enabled = License.Status.Expiration_Date_Lock_Enable;
        System.DateTime expiration_date = License.Status.Expiration_Date;
    }

 public void CheckNumberOfUsesLock()
    {
        bool lock_enabled = License.Status.Number_Of_Uses_Lock_Enable;
        int max_uses = License.Status.Number_Of_Uses;
        int current_uses = License.Status.Number_Of_Uses_Current;
    }

  public void CheckNumberOfInstancesLock()
    {
        bool lock_enabled = License.Status.Number_Of_Instances_Lock_Enable;
        int max_instances = License.Status.Number_Of_Instances;
    }

  public void CheckHardwareLock()
    {
        bool lock_enabled = License.Status.Hardware_Lock_Enabled; 
        if (lock_enabled)
        {
            /* Get Hardware ID which is stored inside the license file */
            string lic_hardware_id  = License.Status.License_HardwareID;
        }
    }

  public string GetHardwareID()
    {
        return License.Status.HardwareID;
    }

    public bool CompareHardwareID()
    {
        if (License.Status.HardwareID == License.Status.License_HardwareID)
            return true;
        else
            return false;
    }

    public void InvalidateLicense()
    {
        string confirmation_code = License.Status.InvalidateLicense();
    }

    public bool CheckConfirmationCode(string confirmation_code)
    {
        return License.Status.CheckConfirmationCode(License.Status.HardwareID,
        confirmation_code);
    }

  public bool ReactivateLicense(string reactivation_code)
    {
        return License.Status.ReactivateLicense(reactivation_code);
    }

    public void LoadLicense(string filename)
    {
        License.Status.LoadLicense(filename);
    }

    public void LoadLicense(byte[] license)
    {
        License.Status.LoadLicense(license);
    }

 public byte[] GetLicense()
    {
        return License.Status.License;   
    }

点击安装.NetReactor后获得License.dll