This is the only way I prepare corn on the cob today. Long gone are the big pots of boiling water. This works equally as well for fresh or frozen defrosted corn.
Shuck ear of corn and remove silks; wet. Wrap ear in 2-3 wet paper towels. Wet being the secret. Place in microwave oven, cook for 2 minutes. Remove and wrap in tin foil, leaving paper towel in place, until ready to serve. These will hold in a warm oven, 170 degrees F, for up to an hour.