Specops uReset consists of the following components and does not require any additional resources in your environment.
Gatekeeper: Manages all operations against Active Directory such as changing/resetting passwords.
uReset Administration Tool: Configures the central aspect of the solution, such as Gatekeeper registration, and enables the creation of Specops uReset settings in Group Policy Objects.
Authentication Client (formerly known as uReset Client): Presents a link to the Specops uReset Web application on the Windows logon screen, and presents end-user notifications about enrollment requirements. The Client is not required, but highly recommended for all domain joined client machines.
Cloud: Contains the web components, and Security Token Services.