When AutoSetTransferMethod is set to 1, JFile will automatically change the data transfer method from URLConnection to sockets, when the file exceeds a certain size (except in certain circumstances, see below).

AutoSetTransferMethod Settings for Windows/Unix/Linux (with supported versions of IE and Netscape)

• If the transfer size is less than 16 MB, JFile will use URL connection.
• If the transfer size is greater than 16 MB, JFile will use sockets.
• If UseWinInet is enabled, and the client browser is Internet Explorer, the AutoSetTransferMethod parameter will be ignored, and JFile will use WinInet. 

AutoSetTransferMethod Settings for MacOS and Netscape 6.x

• JFile will always use Sockets on MacOS with IE or other platforms with Netscape 6.   The AutoSetTransferMethod parameter will be ignored when the file transfer is from these client systems.