Use UserListService to get or set the interface of the user list service. The user list service maintains a list of user names, passwords, and access rights. Using this information, it can validate logins and check a user's access rights. 

Typically, UserListService is the interface of a TWebUserList object. If the WebSnap application does not include a component that implements the IWebUserList interface, the value of this property is nil (Delphi) or NULL (C++). When UserListService is nil (Delphi) or NULL (C++), the WebSnap application can still allow users to log in and check access rights, but the support for this must be coded using event handlers on the page dispatcher. 

TWebUserList 

TPageDispatcher