Created an ASP.NET application with custom ASP.NET controls. In Internet
Explorer, with proxy server settings set, some postback events result in an
error page with the error "Cannot find server or DNS Error." When "Automatic
Configuration" is selected in the browser with no proxy server information,
the post works error free.

The browsers I have tested this with are I.E. 5.5, I.E. 6, I.E. 6 SP1, and
Safari. This problem only occurrs with Internet Explorer and then only when
proxy settings are specified.

The proxy server is an ISA server. My thought is that the URL compiled by
the _doPostBack method contains characters that are either escaped or
treated as escaped by the proxy. I have yet to gain evidence of this though.
Another thought is that the error is caused because the event is being fired
from within a control and that because of the proxy server between the client
and the web-server, the post is being made against the wrong document.

I am aware of the problem that exists when a client object has a name with a
colon ( embedded in it and this is not the case in this application.

Would anyone have any ideas for a solution - aside from turning off the
proxy settings?

--
Bob
---==> Always free() what you malloc() <==---