private static extern Int32 _SetFixedVolumeProtectionMode(string securityToken, string deviceName, FixedVolumeProtectionMode newMode);
 /// <summary>
 /// Defines the protection mode for a given fixed volume
 /// </summary>
 /// <param name="securityToken">Security token</param>
 /// <param name="deviceName">Device name of the volume</param>
 /// <param name="newMode">New protection mode</param>
 /// <exception cref="Exception">if call was not successfull.</exception>
 public static void SetFixedVolumeProtectionMode(string securityToken, string deviceName, FixedVolumeProtectionMode newMode)
 {
     if (_SetFixedVolumeProtectionMode(securityToken, deviceName, newMode) != 0)
     {
         throw new Exception();
     }
 }