I'm using Remoting to transfer of 500K chunk of bytes.

tomb

When transferring large quantities of data, consider using a Stream object.
The use of a Stream object will automatically break the data into smaller
chucks.

As an example, here's a simple Remoting object:

public class RemotingObject : MarshalByRefObject
{
    public Stream GetLargeAmountsOfData()
    {
        return new FileStream("c:\\Temp\\data.dat", FileMode.Open);
    }
}

Here's how a client might call and use this object to retrieve data in chunks.

public class Client
{
   public void GetRemotingData()
   {
       RemotingObject ro = Activator.GetObject(typeof(RemotingObject),
"tcp://localhost:1234/RO.rem");
       Stream s = ro.GetLargeAmountsOfData();

       byte[] data = new byte[1024 * 64];
       int bytesToRead = s.Length();
       while (bytesToRead > 0)
       {
           bytesToRead -= s.Read(data, 0, data.Length);
           //do something with the data
       }
   }
}