From the docs...

/****************** v2.1 2001/07/01************/
Alright, in this version, i separated the mouse hook into it's own dll,
which now runs much much faster and more efficient.
But remember to place it in the root dir with LiteStep.exe and lsapi.dll
or it won't work. You don't need to load ckMouseHook.dll,
hotspots will load it if you didn't specify ckHotspotsVersion1Style.
So this is basically it. BTW, thanks jugg for his suggestion and help. Thanks ;-)