private static void Main()
{
// Add log file (static applied to all instances)
FtpService.AddFileListner(@"ftp.log");
// Example of ftp passive mode
PassiveFtpModeExample();
// Example of ftps passive mode
PassiveFtpsModeExample();
// Example of ftp active mode
ActiveFtpModeExample();
// Example of ftps active mode
ActiveFtpsModeExample();
}