From the west: Long Island Expressway to Exit 40E, (Jericho Turnpike). Left hand turn at second light into complex (Rainbow/Lightpath sign is on 200 Jericho Quadrangle). Head west to 100 Jericho Quadrangle and park in rear.
If you are coming from the east, get off at the same exit and make a right hand turn on to Jericho Turnpike after Jericho Plaza (white "boat" buildings), then make a left at the first light.
Click here to see a map, courtesy of Yahoo. Note that you can get a "printable" version of the map by clicking on the link in the upper right hand corner and can also have Yahoo generate directions between your location and our office.