Yes, EP supports Windows (Active Directory) Authentication.
Please find the setup instructions below:
1. Administrator should login to Easy Projects and prepare an account for him/herself by adding a new user entry and specifying the username in the form of "DOMAIN\UserName". EP requires a password for all users, but using A/D the password field can contain anything, since the windows password will be read, and not the password in this field.
Pic. 1
2. Close all browser windows which access EP pages.
3. Turn On Windows authentication by editing the web.config file: locate the authentication mode="Forms" string, and change the value "Forms" to "Windows" (make sure the word is capitalized).
4. The Administrator can now login to EP without entering his username and password.
Accounts for other users should be prepared in the same way as described in step 1.
5. The last step is to go into the IIS security settings of your website or virtual folder, and turn off anonymous access, or you will receive an error when you try to run certain reports.
Open IIS manager, locate and right click on your EP virtual folder, and choose properties, then select the security tab (see pic.2) - make sure to Uncheck the "Enable anonymous access" box. Stop and start the Website running the EP virtual directory, and you're finished.
Pic.2
In IIS 7 manager it can be done in the Authentication window of EP web site/application as follows.
Open IIS manager, click on EP web site/application, double click Authentication icon in the IIS section on the right. Refer to the picture 3.

Pic.3
NOTE: for IIS 7, the "Windows Authentication" option must be installed, for that you must run Server Manager and add this Role Service (refer to the picture 4).

Pic.4
If you see a Windows login prompt when you open EP page there can be several reasons of that.
If after entering correct credentials for the domain access in the Windows login prompt you successfully log in to EP then it is just browser settings that can be modified.
In Firefox you can setup automatic Windows authentication as follows:
1) Open Firefox.
2) In the address bar type about:config
3) Firefox 3 and later requires you to agree that you will proceed with caution.
4) After the config page loads, in the filter box type network.automatic
5) Modify network.automatic-ntlm-auth.trusted-uris by double clicking the row and enter your EP site name e.g. yourEPsite.com
6) Multiple sites can be added by comma delimiting them such as yourEPsite.com, yourEPsite2.com
If you are not able to login to EP after entering correct credentials in the Windows login prompt then you are logged in to Windows not as the user specified in EP. You can run the whoami command in the command prompt to see user name and domain for currently logged in user.
Article ID: 17, Created On: 2/26/2008, Modified: 3/5/2012