situation:

Internet Explorer set to autodetect proxy server. 

Question
Using ASP (or other code that runs with in internet explorer) I need
to find out the address and port number of the proxy that IE has
autodetected and pass it back to my website. This is to allow me to
pass that value to a Citrix ICA client to enable it to connect to my
system via that proxy.

The company we provide the service for has multiple sites with
multiple proxy servers and as such its impossible to program a
solution for each site. I need it to be dynamic.

IE VERSION is 5.5 and above.

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Request for Question Clarification by alexd-ga on 22 Feb 2003 05:38 PST

Hi Grahamr !

I understand your question, but I need to know if we are talking about
the same things:

1- ASP does not run on the client side (in internet explorer), it runs
only on the server. ASP, PHP, Perl, CGI ... they are all "server-side"
scripting engines. If you want your code to run on the client-side,
you'll need javascript, java or an ActiveX control. Basically, if you
want to know the client's proxy adress (wich you can probably find in
the registry) you need client-side scripting. Also, consider that an
ActiveX control would limit your clients to Internet explore (no
netscape, opera...), would that be a problem ?

2- Why should the adress be passed back to the webserver, if it is
needed on the client-side (to configure the Citrix client) ? If it is
for display purposes, or if you need it to generate some config file
that the user will receive, then you are right.

If I build you a normal HTML page that displays the client's proxy
settings (using javascript, java or an ActiveX control) would that
qualify as an answer ?

Thanks !

Alexandre D.
Job: Computer Programmer
Hobby: Webmaster of http://www.mrrkb.com

:o)