Using FTP through ISA-server proxy

[RedLion]

I've written once an application that uploads some files to a FTP server on the Internet. I did this using the nice code from this FAQ faq184-3234 . But the problem now is that one company has placed a ISA 2004 server (Microsoft Internet Security and Acceleration Server 2004) in their network environment, and to make outside calls to the Internet you should use the proxy-server from the ISA server. And with the code from this FAQ I can't get it to work.

I've searched the Internet and I can't find so much information about uploading files using FTP to the Internet. One article I found was this one

http://support.microsoft.com/kb/q166961/

and it explains how to read a file through a proxy using FTP. But I have no idea how to go from this point on to upload a file. As far as I understand from this article it is possible to set within Internet Explorer going to Extra->Internet settings->Connection->Lan settings and then give up a proxy server. Using this way of proxies is called CERN-based proxies and then the following figure comes in place

  Get ftp://host.com/root/test.doc HTTP 1.0        FTP Request
   |=========|                 |=============|          |=============|
   |         |---------------->| Cern-based  |--------->|             |
   | Client  |    HTTP         | Proxy Server|   FTP    |  Ftp Server |
   |         |<----------------|             |<---------|             |
   |=========|                 |=============|          |=============|
         HTTP/1.0 200 <document>                  FTP Response

I've read the API documentation if I could find something interesting for me, but as far as I understand it all doesn't apply for me...
Can someone please help me, or at least point me into a direction?

Thanks in advance,

Charl

 

[calloatti]

A little late, but maybe this class can help you:

http://www.ctl32.com.ar/ctl32_ftp_help.asp

Check out the following properties:

InternetAccessType
InternetProxyName

Carlos Alloatti

 

[RedLion]

Not to late, the problem is still around, and I can't find a solution for it :-(

So thanks for your response and I will take a look at it this week, and will report back.