Network Protocol/Server/OTHERSLIST

Record "O_LIST"

Structure:

\otherslist\
\sesskey\<sesskey>
\profileid\<profileid>
\numopids\<friends count>
\opids\123456789|123456789|123456789|123456789|123456789
\namespaceid\<unknown>
\gamename\mariokartwii
\final
\

<sesskey> is the Session ID that you got from N-server 242 while logging in (LOGIN)
<profileid> is your profile ID (not the same as the user ID). You've also got this while logging in.
<friends count> is the number of friends in your friends list

After "opids" there are the user IDs of your friends, seperated by an "|".