FTP Proxy Authentication

Hi Every one,

I have a  mini project to download files from FTP server. Currently I'm using WinInet functions. I'm doing an enhancement to support ftp proxy and HTTP proxy with Authentication. As far as i learnt now, we can't use WinInet function to support  ftp proxy with authentication but We can use WinInet function to use Http Proxy Authentication.Is it true.? 

If yes how can we proceed to support FTP proxy with authentication without changing the framework? Currently I'm using InternetOpenUrl function. It is failing for FTP proxy with authentication. 

Thanks,

Sasikala