Sending Large binary data using CSocket

[Katamneni]

Dear MFC guru's I'm using MFC CSocket and CSocketFile and serialization to transfer data over the network.My data size is very large(some times upto 100KB).But my application is getting hanged after some time.When i monitor my data transfer using TDImon tool(from www.sysunternals.com) the result column is displaying PENDING when it's running and DATA_NOT_ACCEPTED before going to inactive state.My server application is not responding untill i kill my client application running on different machine.Can anyone help me how to transfer large amount of data using serialization and CSocket and why DATA_NOT_ACCEPTED error is coming.Any code examples would be great help. Thanks and Regards Krishna