Barrow moved three points clear of the relegation zone with a surprise win at play-off chasing AFC Wimbledon.
Jon Main earned the home side a penalty when he was fouled by Phil Bolland but his spot-kick was saved by Tim Deasey.
The visitors took advantage of that miss when Mark Boyd put them ahead with a stunning 25-yard strike.
Danny Kedwell and Nathan Elder both had chances to equalise but Nick Chadwick made sure of all three points for the visitors with another long-range shot.
AFC Wimbledon: Pullen, Conroy, Lorraine, Judge, Duncan, Wellard, Hatton, Poole (Adjei 65), Moore, Main (Elder 60), Kedwell. Subs Not Used: Brown, Johnson, Blanchett.
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