Installation and Upgrade > Advanced Deployment Considerations > Authentication > Configuring an Alternative Authentication in Windchill > Form-based Authentication > Info*Engine Customization Changes
  
Info*Engine Customization Changes
Custom JSPs, SOAP services and Info*Engine tasks can be used with a form-based authentication solution.
When using a form-based authentication solution, the URLs used by clients to access the IE servlet, RPC, or the SimpleTaskDispatcher servlet must include the /protocolAuth URL prefix.
For additional information, see Interacting with Info*Engine.