The Weird and The Wonderful

TimeZone = If(item.Descendants("DisplayableDateTime").Attributes("TimeZone").ElementAt(0).Value <> "", item.Descendants("DisplayableDateTime").Attributes("TimeZone").ElementAt(0).Value, "")

// start initial receive operation
s.BeginReceive(...,OnReceive);
...
void OnReceive(...)
{
   lock(...)
   {
       // fetch incoming message
       ...
       // start next receive operation
       s.BeginReceive(...,OnReceive)
   }
   // process received message outside of lock to avoid holding it for a long time
   ...
}

// start initial receive operation
s.BeginReceive(...,OnReceive);
...
void OnReceive(...)
{
   lock(...)
   {
       // fetch incoming message
       ...
   }
   // process received message outside of lock to avoid holding it for a long time
   ...
   // start next receive operation
   s.BeginReceive(...,OnReceive)
}