Yes, use DOSBox. Only way it'll work. No biggie, though. Just drag the DP.EXE icon onto your DOSBox shortcut and it'll load up no problem. But don't think it won't take a lot of time. I tried out VGA-ifying a screen myself from King's Quest I SCI just last night because I got in the mood again. No where near finished yet. Be prepared to take your time. Game making isn't made overnight. Especially not the artwork. Take your time and make it look good.
"Booyah! Look out, LeChuck! Here comes Guybrush Threepwood's glowing sword of hot monkey vengeance!"
-Guybrush Threepwood, Tales of Monkey Island