[ Packet Type 7 ] - 0x07 - Client to Server - UserName Free Query


     <PacketLength><PacketType<nick>


       <nick> The Client queries the Server with this packet to see if the username string <nick> is already registered.  
       This packet is typically sent prior to logging in for the first time to check for a valid username <nick>.


       Response to this message is one of <8>,<9> or <10>


     NAPSTER  Compatible
     OPENNAP  Compatible
     SLAVANAP Compatible