An injury-ravaged Dons line-up proved no match for a strong and physical Fisher side. The visitors arrived seven points clear at the top of the parallel Doc Martens League Eastern Division, and looking to capitalise on the makeshift nature of an almost threadbare Wimbledon squad.
The Dons lined up in a 4-4-2 formation, with Jay Conroy and Micky Woolner as full-backs, Steve Butler and Antony Howard at centre-back, Ryan Gray in left midfield, Steve Gibson on the right, with Jon-Barrie Bates and Gavin Bolger in the centre and Rob Ursell once more pushed into service upfront with Martin Randall. Richard Butler, who limped off injured on Saturday, was deemed fit enough for a place on the bench.
The first chance fell to the Dons, as Randall broke clear out wide. Jerome John came out well to save and injured himself in the process, but was ok to resume after treatment, as he proved by claiming the corner.
Fisher then had a couple of chances from outside the box, but Smith dealt with them comfortably enough in a cagey opening period.
As half-time approached, a lack of concentration at the back allowed Watts to run through clear on the Dons goal, but Paul Smith raced out to the very edge of his area and made an excellent save. The ball was deflected out wide and Steve Butler got his head to the resultant cross to concede a corner as Smith regained his position. The corner was easily dealt with as Hamid Barr tumbled theatrically (and in vain) in search of a penalty.
But a free-kick on the edge of the box shortly afterwards saw Barr step up and rifle a well-struck effort over the wall and in at the near post past an unsighted Smith.
Steve Butler went closest for the Dons before the interval from an Ursell free-kick, but his chested effort was saved by John.
The Dons' second-half task against a team so high on confidence and form assumed mountainous proportions just three minutes after the restart when Damien Scanwell fired a shot low past Smith at his near post from the edge of the area.
Dave Anderson withdrew Gray and Ursell and sent on Richard Butler and Andy Frost to chase the game. But it was a Fisher defender who first went closest to bringing the Dons back into the game, flicking a corner onto his own post under pressure from Martin Randall. Two further corners saw the Dons go close but Fisher's defence held firm.
A half-cleared free-kick was sent back into the box by Frost, but Randall couldn't do any more than twist his shot wide.
Gary Prigent replaced Gibson for Wimbledon's last throw of the dice, but with Fisher content to sit on their lead, the home side could find few openings. Randall found himself clear from a high through ball and seemed for all the world to be hauled down by the last defender as he tried to get a shot in, but the referee was unmoved by the appeals for a penalty.
With five minutes remaining, Fisher put the game beyond doubt as substitute Taylor turned Conroy, ran through and fired past Smith for 3-0. Insult was added to injury as Smith couldn't hold a last-minute shot and Riviere tapped in the rebound to give the scoreline a flattering tinge.
Not too much can be read into this result given the Dons' current injury woes, but Dave Anderson will be hoping he can patch together a greater threat up front when Bromley visit on Saturday.