Freeware Anagram Solver for Windows!
Anagram Master quickly solves anagram puzzles using a large English dictionary. It is useful for solving anagram problems, scrabble, word yahtzee, word poker and a few other word games and puzzles.
You can input any length of anagram and select the size of words to search for. It uses a word list containing 80,000 words (includes plurals). It contains British and American spellings for words. You can also replace the word list with your own; if for example you wanted to search for words without plurals, or even use a completely different language!
It is very simple to use, has a small file size, and there's no need to install: just unzip into any directory and run from there.