APEX

Hi:

I am using APEX 4.0 version.

I have create an APEX application. Let's call it Application A (APEX).

User can use below URL to login to Application A (APEX):

- http://xxx:8040/pls/apex/f?p=BIEXPRESS:HOME

The authentication is based on Microsft active directory. I have created such authentication and test it out. It works perfectly.


Also, we are having another internal web application (let's call it Application B), which has alsoanthentication (the authentication is not based on Microsoft Active Directory). Application B is not an APEX application.

We want user be able to launch Application A (APEX) within Application B without need authentication again. Basically, if user has login to Application B, he should be able to click a URL within Application B to launch Application A (APEX) without being asked for authentication.

Below is the URL I embedded within Application B to launch Application A (APEX). As you can see I have specified the REQUEST = 'APPSB'

http://xxx:8040/pls/apex/f?p=BIEXPRESS:HOME::APPSB


Here is my qustion: without configure SSO in our APEX, how can I achieve below:
- when user directly login to Application A (APEX) via URL http://xxx:8040/pls/apex/f?p=BIEXPRESS:HOME, user need be authenticated against Microsft active directory
- when user click a link within Application B to launch Application A (APEX), Application A (APEX) should let user access it.


Thanks!

Kevin