IIS server with multiple FTP.

Hi,

I need to create two FTP server in a single IIS server, where both will have different directory with different set of files.

My clients phones should access these FTP based on their User name and password.

However I cannot change the default port numbers in these client phones as well as I cannot have two FTP server with default port number at a time running on my IIS server.

So, anyone please help me is there any work around.

Notes:

*Phones can have default port number only.

*We have to use one IIS server only.

*No 3rd party FTP server can be used.

Thanks in advance.