You can turn these off in extension manager. Name two settings (1 with and 1 without NS extensions).
>Assuming you're using Mac OS 8.x to 9.x, remove the following files >from the Extensions folder that's in your System folder, then restart >your Mac: > > Nikon LS4K Family > Nikon LS4K Expert > Nikon LS4K Driver > Nikon Common Driver > >If you later want to use NikonScan (either standalone or as a >Photoshop plug-in) you have to copy these files back into the >Extensions folder and restart your Mac again. > >--Bill Mike Duncan
