The application functions can create new applications, and modify, copy, get information about and otherwise manage existing applications.
| Function | Description |
| EssGetActive() | Gets the names of the caller's current active application and database. |
| EssSetActive() | Sets the callers active application and database. |
| EssClearActive() | Clears the user's current active application and database. |
| EssListApplications() | Lists all applications which are accessible to the caller. |
| EssCreateApplication() | Creates a new application, either on the client or the server. |
| EssCreateStorageTypedApplication() | Creates a new application with the option of Multi-Dimensional or Aggregate Storage. |
| EssDeleteApplication() | Deletes an existing application, either on the client or the server. |
| EssRenameApplication() | Renames an existing application, either on the client or the server. |
| EssCopyApplication() | Copies an existing application, either on the client or the server, to a new application, including all associated databases and objects. |
| EssGetApplicationInfoEx() | Gets information from one or more applications |
| EssGetApplicationState() | Gets an application state structure, which contains user-configurable parameters for the application. |
| EssSetApplicationState() | Sets user-configurable parameters for the application using the application's state structure. |
| EssGetApplicationInfo() | Gets an application's information structure, which contains non user-configurable parameters for the application. |
| EssLoadApplication() | Starts an application on the server. |
| EssUnloadApplication() | Stops an application on the server. |