For hardcopy drivers, the presentation driver is loaded in response to an application or process calling DevOpenDC. Upon receipt of this routine, the Presentation Manager interface looks to see if the required presentation driver is loaded, and if it is able to handle the new device context (DC). If the presentation driver is loaded and can handle the DC, the driver is enabled for the new DC. If either of these conditions is not met, the required driver is loaded and then enabled.

Note: The amount of time required by the system to load a driver can be reduced by supplying Extended Attribute information in the .DRV file. See Extended Attributes for further information.