To configure new users for Windows Authentication to the SalesLogix 7.5 Web Client, follow the below procedure:  (This procedure assumes that the general Windows Authentication setup as defined in the SalesLogix 7.5 Implementation Guide has already been performed.)

Login to the SalesLogix Administrator.
On the Administrator Navigation Bar, click Users.
On the Users view, double-click a user to open the profile.
Select the Use Windows Authentication check box.
In the Windows ID box, select the name the user enters to log on to Windows.
Exit the SalesLogix Administrator.
Add the new user to a domain Group that has already been added to SlxClient security or perform the below steps:
On the Web Server computer, open Internet Information Services (IIS) Manager.
Expand the Web Server computer name, expand Web Sites, and then expand the
name of the Web site where you deployed the Sage SalesLogix Web Client portal.
Right-click SlxClient, and then click Permissions.
On the Security tab, click Add.
In the Select Users or Groups dialog box, add your Web Client domain user, and
then click OK.

Have the user test automatic login to the Web Client by accessing a URL in the below format from their workstation:Http://WebServerName:Port/SlxClient/Windows.aspx. If Windows.aspx is not part of the URL, the user will be presented with the normal login screen and they will need to enter their assigned SalesLogix username and password.