[ID] 3 [Description] A Message Format Error event reports that the broker received a message that does not match the expected format. The message may have been corrupted, or a program other than SQL Server may be sending messages to the port that Service Broker uses. [Subclass] 
Message Format Error
L o g i n S u c c e s s
L o g i n P r o t o c o l E r r o r
M e s s a g e F o r m a t E r r o r
N e g o t i a t e F a i l u r e
A u t h e n t i c a t i o n F a i l u r e
A u t h o r i z a t i o n F a i l u r e