Rated 5 out of 5 stars

I upgraded Thunderbird v.2 to Thunderbird 3.1.2 without a problem.
Thunderbird 3.1.2 downloaded the suitable upgrade for Enigmail and installed it.
Then I installed Gpg4win 2.0.4 after deinstalling Gpg4win 1.1.3.
The whole story runs on Win XP using the I2P anonymizing Network.
Enigmail and everything else runs fine.
Perfect

This review is for a previous version of the add-on (1.1.2).