There are the following event services:
| Service | Description |
| Call_Global_Event | Calls the event procedure or schedules an event. |
| Call_Priority_VM_Event | Schedules a priority event. |
| Call_VM_Event | Schedules an event for a virtual machine. |
| Cancel_Global_Event | Cancels a global event. |
| Cancel_Priority_VM_Event | Cancels a priority event. |
| Cancel_VM_Event | Cancels an event for a virtual machine. |
| Schedule_Global_Event | Schedules a global event. |
| Schedule_VM_Event | Schedule an event for a virtual machine. |