Installation and Upgrade > Installation and Configuration Guide > Using the PTC Solution Installer > Installing Windchill Solutions > Optional Product Settings > Windchill Business Reporting > Windchill Business Reporting Post Installation Instructions > Adding an Enterprise LDAP for Authentication > Configure your Web Server > Internet Information Services (IIS)
  
Internet Information Services (IIS)
IIS can only use a single LDAP for authenticating of Windchill Business Reporting requests. As noted in the Configuring IIS and Windchill chapter, PTC recommends that you initially configure your system using the bundled PTC HTTP Server, before switching to IIS.
1. Follow the steps in the PTC HTTP Server on Windows section, and ensure that the configuration is working correctly.
2. Following the instructions contained in the Cognos Installation and Configuration Guide to configure IIS for Windchill Business Reporting.
3. Shut down PTC HTTP Server, and start IIS. As they are not running concurrently, both PTC HTTP Server and IIS can use the same port.