| Interface | Description |
| IAddInOptions | Supports addin specific options. |
| IAETitle | Supports server AE title verification and enumeration. |
| IAuditLog | Support DICOM audit logging. |
| IConfigureDialog | Addins implement this interface if they want to provide a custom configuration dialog. |
| IDicomRequest | Supports addins sending DICOM related requests. |
| IDicomSecurity | Provides security information when performing a secure DICOM conneciton. |
| IExtendedPresentationContextProvider | Allows implementors to support DICOM extended negotiation features in an addin. |
| IFeature | Allows implementors to add licensing features to the PACS Framework Server. |
| ILicense | Allows implementors to provide license to the PACS Framework Server. |
| ILicenseProvider | Allows the implementer to provide runtime license information to the storage server. |
| IModule | Defines a set of methods to be implemented by modules deployed in the application. |
| INotifyReceiveMessage | Addins implement this interface to be notified of all DICOM messages that occur. Implementers of this interface cannot affect the messages. |
| INotifySendMessage | Addins implement this interface to be notified whenever a new DICOM message is sent. Implementers of this interface cannot affect the messages. |
| IPresentationContextProvider | Addins implement this interface if they want to dynamically decide on presentation context support. |
| IProcessBreak | Addins implement this interface to be notified when a processing stop request has been issued. |
| IProcessCFind | Allows implementors to respond to C-FIND-REQ commands. |
| IProcessCGet | Allows impementors to respond to a C-GET-REQ command. |
| IProcessCMove | Allows impementors to respond to a C-MOVE-REQ command. |
| IProcessCStore | Allows implementors to respond to a C-STORE-REQ command. |
| IProcessNAction | Allows implementor to process N-ACTION-REQ command. |
| IProcessNCreate | Allows implementors to process N-CREATE-REQ command. |
| IProcessNDelete | Allows implementors to process N-DELETE-REQ commands. |
| IProcessNGet | Allows implementors to process N-GET-REQ commands. |
| IProcessNReport | Allows implementors to process N-EVENT-REPORT-REQ commands. |
| IProcessNSet | Allows implementors to process N-SET-REQ commands. |
| IProcessServiceMessage | Allows an addin to process a service message. |
| IServerConfig | Allow an implementer to initialize some configuration information when the server loads. |