Hi Simonduz , first of all thanks for your reply.
Presently i am using the latest version of DNN 4.5.1. These are the following information which i have tried for Authentication.
in Admin >> Authentication
(1) Windows Authentication - Yes (ie, Checked)
(2) Synchronize Role - Yes (ie, Checked)
(3) Provider -ADSIAuthenticationProvider (which is Default)
(4) Authentication Type - Delegation
(5) Root Domain - LDAP://in002.xxxx.net/DC=in002,DC=xxxx,DC=net
(6) Username - in002\ic00t006
(7) Password - ************
(8) Confirm Password - ************
(9) Email Domain - (blank)
And i tried to uncommenting for Windows Authentication and commenting for the Forms Authenction which is specified in the Web.config file. But no use and i am getting some error like couldnot able to access the database (Database.mdf).
<!--
<authentication mode="Forms">
<forms name=".DOTNETNUKE" protection="All" timeout="60" cookieless="UseCookies" />
<identity impersonate="true"/>
<
</
authentication mode="Windows">authentication>
we need to give any special permission for the virtual directory?
And one important thing i want to tell you. while i run the same DNN 4.5.1 application from the file system (instead of running from IIS) it was working fine( and i didnt make any changes in the web.config file also and i gave the same information which i have mentioned above for the Authencition). so i am little bit in a terrible condition please help me out.
so what will be the exact problem.??? or Is there any special module for Authenction?
</authentication>
-->