Specifies if and when to demand-load certain applications.
| Type: | Integer | 
| Saved in: | Registry | 
| Initial value: | 3 | 
If you set this system variable to 0, third-party applications and some AutoCAD commands cannot function.
| Value | Description | 
|---|---|
| 0 | Turns off demand-loading. | 
| 1 | Demand-loads the source application when you open a drawing that contains custom objects. This setting does not demand-load the application when you invoke one of the application's commands. | 
| 2 | Demand-loads the source application when you invoke one of the application's commands. This setting does not demand-load the application when you open a drawing that contains custom objects. | 
| 3 | Demand-loads the source application when you open a drawing that contains custom objects or when you invoke one of the application's commands. |