public class CheckOutLicenses
  {
    // Esri Application Initilization object located in Esri.ArcGIS.System.dll
    private IAoInitialize _aoInit;
    // ArcFM Application Initialization object located in Miner.Interop.System.DLL
    private IMMAppInitialize _mmAppInit;
    public CheckOutLicenses()
    {
      _aoInit = new AoInitializeClass();
//1
      _mmAppInit = new MMAppInitializeClass();
    }

    /// <summary>
    /// The following code will check out an Esri License based on a
    /// license enumeration value passed into the function
    /// If a license cannot be checked out, the function will throw an error
    /// </summary>
    /// <param name="LicenseToCheckOut">Enumerated value of an Esri license to check out</param>
//2
    public void GetEsriLicense(esriLicenseProductCode LicenseToCheckOut)
    {
      // check and see if the type of license is available to check out
      esriLicenseStatus EsriLicense = (esriLicenseStatus)_aoInit.IsProductCodeAvailable(LicenseToCheckOut);
      if (EsriLicense == esriLicenseStatus.esriLicenseAvailable)
      {
        // if the license is available, try to check it out.
        EsriLicense = _aoInit.Initialize(LicenseToCheckOut);
        if(EsriLicense != esriLicenseStatus.esriLicenseCheckedOut)
        {
          // if the license cannot be checked out, an exception is raised
          throw new Exception("The Esri license requested could not be checked out");
        }
      }                                                                         
    }

    /// <summary>
    /// Call to shutdown the Esri AO Initialize object.
    /// Should be the last call to the object
    /// </summary>
//3
    public void ReleaseEsriLicense()
    {
      _aoInit.Shutdown();
    }


    /// <summary>
    /// Check out an ArcFM License by passing in an enumerated value of 
    /// license options to check out.  Gets an ArcFM license if one exists,
    /// attempts to check it out, and throws an exception if one cannot be checked out.
    /// </summary>
    /// <param name="LicenseToCheckOut">Enumerated value of the license to check out</param>
//4
    public void GetArcFMLicense(mmLicensedProductCode LicenseToCheckOut)
    {
      // check and see if the type of license is available to check out
      mmLicenseStatus mmLS = _mmAppInit.IsProductCodeAvailable(LicenseToCheckOut);
      if(mmLS == mmLicenseStatus.mmLicenseAvailable)
      {
        // if the license is available, try to check it out.
        mmLicenseStatus arcFMLicenseStatus = _mmAppInit.Initialize(LicenseToCheckOut);
        
        if(arcFMLicenseStatus!=mmLicenseStatus.mmLicenseCheckedOut)
        {
          // if the license cannot be checked out, an exception is raised
          throw new Exception("The ArcFM license requested could not be checked out");
        }
      }
    }

    /// <summary>
    /// Shutdown the ArcFM Application Initializion object
    /// Should be the last call to make on the object.
    /// </summary>
//5
    public void ReleaseArcFMLicense()
    {
      _mmAppInit.Shutdown();
    }
  }
}

namespace Miner.Samples.LicenseCheckout
{
  /// <summary>
  /// Summary description for MainProgram.
  /// </summary>
  public class MainProgram
  {
    public static void Main(string[] args)
    {
//1
      CheckOutLicenses arcfmLicenseCheckout = new CheckOutLicenses();

      // obtain the ArcFM and Esri Licenses.
      try  
      {
//2
        arcfmLicenseCheckout.GetEsriLicense(esriLicenseProductCode.esriLicenseProductCodeArcInfo);
      }
      catch
      {
        // was not able to obtain an esri license.  terminate code execution.
        return;
      }

      try
      {
//3
        arcfmLicenseCheckout.GetArcFMLicense(mmLicensedProductCode.mmLPArcFM);
      }
      catch
      {
        // was not able to check out an ArcFM License.  terminate code execution.
        return;
      }

      // the Esri and ArcFM licenses are checked out.  
      // put the custom logic here

      // release the ArcFM and Esri licenses.
//4
      arcfmLicenseCheckout.ReleaseArcFMLicense();
      arcfmLicenseCheckout.ReleaseEsriLicense();
    }
  }