As you can see in the attached file, Patch My PC shows that "LAME v3.98.3 for Audacity" needs to be updated. The latest version of LAME for Audacity is v3.99.3 for Windows (check here http://lame.buanzo.org/#lamewindl). Even after applying the Patch My PC update for LAME, I keep getting the same result from Patch My PC. This problem started on 20 March 2015 even though I've been using LAME for Audacity v3.99.3 for a year or more.
I'm using Windows 7 Home Premium Service Pack 1 (64-bit) with all the latest Microsoft updates applied. My version of Audacity is 2.0.6.
Thanks for reporting will be fixed in the next update!