LTYPEGEN

Controls the display of linetypes. When turned on (set to 1, the default), linetypes are regenerated. When turned off (set to 0), linetypes are not regenerated. Turn this system variable off to improve performance when working with complex drawings and slow regeneration due to linetype generation.

Type:     Integer

Saved:     In the registry

Range:     0 (Off), 1 (On)

Default:     1