In response to Finger requests from other hosts, the Finger server returns the full name of the specified user, his or her complete email address, and the contents of the Plan file (if one exists). For more information on the Finger protocol, see "Setting Up a Finger Plan".
If an alias is specified in a Finger request from another host, the Finger server returns the expansion of that alias.
In response to Finger requests that do not specify a user, the Finger server reports that it will not display the current logged in user. To do otherwise is considered by many to be a security breach.
As a Windows service, the Finger service can run completely hidden or with some feedback. The Finger server continues to run when you log off the Windows system.