I have 2 lbs frozen, pre-cooked king crab legs. How long should I boil them for?

We've enjoyed pre-cooked alaskan king crabs legs before. I prefer them hot, rather than cold (as previous poster seems to suggest to prepare.) We actually put them in a pot of boiling water frozen for about 5 - 7 minutes. Just enough to heat them through. Occassionally we add salt to the water - we prefer the "salty" taste. Sometimes if you boil them in plain tap water, they tend to lose that brine flavor.|||Because they are "precooked" you don't have to cook them again. In fact, if you do, they'll most likely get really tough. Defrost them in cool water or by leaving them in the fridge for a day, then rinse thoroughly in cold water to remove the salty brine flavor they have with them. Enjoy!|||no no no, thaw them out and cook in the oven at about 350 to 375 for about 10 to 15 minnutes melt your butter and enjoy!!!!!|||I have cooked them in the over.