You can defrost frozen bread dough and even speed up bread rising in the
 microwave if you follow these steps:
 For defrosting:
 Place bread on a microwaveable plate. Cover with plastic wrap and microwave
 on high for 25 seconds. Turn over, rotate plate 1/2 turn and microwave on
 high for another 25 seconds. Then put into your baking pan that has been
 sprayed with non-stick cooking spray and let rise for 1 to 2 hours. It may be
 faster to put the frozen dough in the baking pan which has been sprayed with
 a non-stick cooking product. Don't wrap dough with plastic wrap. Preheat oven
 to 200 F, then turn off. Boil 1 or 2 quarts of water in a shall pan. Place
 rolls in oven with the pan of sater. Let dough rise about 1 hour, until
 doubled in size. Watch closely so dough doesn't rise too high. Remove water
 and then bake bread. 
 Or. . . wrap frozen bread dough in waxed paper and set in microwave. Set
 machine to defrost for 6 to 7 minutes for a 1 lb. loaf of bread. Then allow
 to rise and bake in a conventional oven.
 Or. . . boil 4 cups water. Place boiled water in microwave with frozen bread
 which has been placed in a glass loaf pan. Microwave on high 1/2 minutes;
 rest 20 minutes. Repeat 3 times, rotating dish 1/4 turn with each heating.
 Rest in microwave until duble in size (15 to 20) minutes. (Reheat water if it
 cools) Cook in conventional oven following directions of your recipe. 
 Or. . . place frozen bread dough in a greased 9x5x3-inch glass loaf pan
 placed in 1 cup boiling water bath in a 12x8-inch glass dish. Microwave on
 medium (50%), covered with wax paper, 4 to 5 m;inutes, rotating 1/4 turn
 every minute and turning dough over halfway through cooking. Rest 10 minutes
 in water bath. Bake as desired. 
 To speed up bread rising: 
 Fill 4 cup glass measure with 3 cups water. Microwave on high for 6 to 8
 minutes to boil. Place dough in glass bowl. Place dough dish in 12x8 inch
 glass dish filled with boiling water. Microwave low (10%), covered, 12 to 15
 minutes until double in size. Punch down. Repeat. Transfer dough to glass
 loaf pan. Repeat until double in size. 
 I have a few sources that I go by to get the times and cooking level guides.
 These tips have helped me from time to time. I know it works. Happy baking!