Every company has a specific set of password policies for its database system. Depending on the policies, the password expires at a specific date and time.
Unless the password is reset, the Adaptive Server drivers connected to a database throw password expired errors and suggest that the user change the password using isql. The password change feature enables users to change their expired passwords without having to use another tool.
Adaptive Server ADO.NET Data Provider supports the ChangePassword method, which enables applications to change expired passwords without administrator intervention. For more information, search for ChangePassword method in the Microsoft Developer Network