From MSNPiki

FQY

MSN_Protocol_Version_14

Payload command. The content looks like the content of ADL. Use is uncertain at the moment.

FQY (TrId) (PayloadLength)\r\n
<ml l="2"><d n="domain"><c n="email"/></d></ml>

Other info:

http://forums.fanatic.net.nz/index.php?s=c17870d94c3940c06eea1169d989f65b&showtopic=15741&st=0

New Proxy Command FQY: Example of adding a contact:

 >>>ADL 42 61
 <ml><d n="yahoo.com"><c n="steven" l="2" t="1"/></d></ml>
 >>>ADL 43 61
 <ml><d n="yahoo.com"><c n="steven" l="1" t="1"/></d></ml>FQY 44 49
 <ml><d n="yahoo.com"><c n="steven"/></d></ml>
 <<<ADL 42 OK
 <<<ADL 43 OK
 FQY 44 50
 <ml><d n="yahoo.com"><c n="steven" /></d></ml>