Don't double post.
The DLL comes with the demo in the first post. You just copy it over into your game's project folder.
As stated in the Dynamic Lights documentation:
# The game world only gets dark at night. You can control the Flow of Time by
# turning Game Switch 74 (Default) to ON. As time progresses, the Shadow that
# covers your screen will fade out until only Lights with Color are visible.
And when you scroll down far enough into the script, you reach the configuration section. You will see:
# Game Switch to Enable Time
Switch_Time = 74
To me, it sounds like all you have to do is make sure you leave Switch ID 74 as OFF. Or change the Switch_Time to some other number and ensure that Switch ID is OFF.