PA28 EXPERIENCES NMAC ON SHORT FINAL WITH ACFT TAKING OFF OPPOSITE DIRECTION AT NIGHT FROM AN UNCONTROLLED ARPT.

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AFTER SUNSET THE TWR IS CLOSED. I HAD TAKEN OFF ON RWY 35 (PUBLISHED FOR R TFC); ANNOUNCING CLOSED TFC. SOMETIME DURING FLT IN THE PATTERN; I HAD HIT A BUTTON ON THE RADIO AND CHANGED FREQS SO THAT I WAS NO LONGER ANNOUNCING ON CTAF. WINDS CALM. ON SHORT FINAL ON RWY 35; ABOUT 300 FT AGL ON GS WITH ALL NAV LIGHTS AND LNDG LIGHT ON (NO STROBES INSTALLED). AT OPPOSITE END WAS A LARGER ACFT WITH WINGTIP AND NOSE LIGHTING. ACFT TURNED ONTO RWY AND BEGAN ACCELERATING. APPLIED FULL PWR; DROPPED A NOTCH OF FLAPS; GOT POSITIVE RATE AND SIDESTEPPED TO THE R; OVER THE GRASS; AND CONTINUED WITH PROCS FOR GAR. PROB CAUSED BY PLT(S) OF LARGER ACFT TURNING ONTO RWY WITHOUT LOOKING FOR TFC IN PATTERN. CONTRIBUTING FACTOR: MY HAVING HIT THE FREQ CHANGE BUTTON ON MY 'ACTIVE' RADIO. IT SHOULD BE NOTED THAT RWY 35 IS THE ONLY RWY WITH INST APCH -- ACFT ON APCH SHOULD BE LOOKED FOR AS THEY MAY GET A LATE CHANGE TO CTAF BY DFW APCH. FURTHER; GIVEN THAT THIS IS THE ONLY RWY WITH AN APCH; IT WOULD SEEM THAT IT WOULD BE NOTED AS THE PREFERRED CALM WIND RWY.