When connecting to a published application, using the PNAgent Client Versions prior to 10.100, and the user’s password is expired, the PNAgent Client displays an error message:
"Users Credentials Have Expired."
If the user clicks OK, the dialog box closes but no other dialog boxes appear to give the user the option to change their password.
No other options are available in the PNAgent Client, to “change password”, when right-clicking on its icon in the System tray.
This functionality, through the PNAgent client version 10.100 or later, was introduced with Web Interface version 4.6.
CTX113743 – Web Interface Administrator's Guide – page 18
Change password using the Program Neighborhood Agent. Users of Web Interface Program Neighborhood Agent Services sites who log on to the Citrix Program Neighborhood Agent using explicitly supplied domain credentials now have the option of changing their Windows password if it expires. Users can change their password regardless of whether or not their computer is in the domain to which they are attempting to authenticate. This means that you can deploy the Program Neighborhood Agent such that client desktops are in workgroups and still allow users to change their expired passwords by authenticating to the domain in which applications are published.