Harriers launched a series of long-distance drives at goal with Smith perhaps coming closest.
The centre-back rushed forward from defence and fired a 30-yard piledriver on 24 minutes which keeper Book held above his head at full stretch. Adie Smith
Another vicious strike from determined midfielder Bennett was well caught by Book two minutes later.
But Harriers had a scare on 28 minutes when striker Naylor broke through after a luck rebound off Smith's attempted clearance only for Nixon to block his shot smartly with his legs.
The rest of the half was short of goalmouth incident although Harriers forced two dangerous corners in injury time.
Then a foul on Broughton earned them a free kick on the edge of the area but Williams' drilled set piece rebounded off the solid Cheltenham wall.
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