>> no longer able to upload files to their website via HTML forms.  
>> The code was written 6 (?) years ago on CF5/IIS/Win2000 using CFFILE.


We had a case a while ago where a client using a similar cffile upload
script/HTML form suddenly couldn't upload files through their admin page.
The problem was that their anti-virus/internet security program on the
client PC was blocking the upload and would not send the data in the form.

I couldn't replicate it until I went to their location and saw the issue in
person.  Temporarily disabling the firewall allowed the upload. They
eventually called Symantec tech support and was given instructions on how to
allow the post to go through. 

I see this type of thing a lot on another website that uses FTP for
download. The Internet Security programs close off port 21 by default and
most all but the basic HTTP, SMTP & POP3 ports.  Now they are blocking all
traffic not going through their own proxies and need exceptions for just
about any outbound traffic.

-Dennis



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