How to bypass .htaccess login

[Asif]

Hi All,
I am having problem to log into the other domain's pages without
popping up default login box. There are two domains involved in the
application (PHP and APACHE based). At first domain I am
authenticating user against AD.

Upon success I want to access other domains pages which are protected
using htaccess rules without asking to reenter user credentials again.
I want to bypass this rule.

When I tried sending username and password embedded inside url for
e.g. 'http://user:pass...@www.domain.com'. I found that due to IE
security fixes this idea doesn t seems to work.

Then I tried using cURL to bypass this rule. I got index page (Other
domain s) output to first domain without redirecting to other domain.
But problem is like whenever I tried to use the navigation
functionality of this output for e.g. clicking on any of the links
causes redirection into other domain pages and this again popups the
login box.

Is there any solution to bypass this login process?