InBufferSize

Sets or Retrieves the size of the Input (receive) buffers.

Available at Design time and Runtime. Read Only While the port is open.

Syntax	object.InbufferSize = value

object	Name of the communications control.
value	A numerical expression indicating the size of the receive buffer.

Examples
	object.InbufferSize = 4096	'// Set the value

	Text1.Text = object.InbufferSize	'// Retrieves the current size of the buffer

32bit development in VB6 using the Comm32 Communications OCX ?

Or are you looking for a proper .Net Component ?

Carry on using most of the common and well documented MSComm32 syntax but with a proper .net component allowing you to build x86, x64 and AnyCPU projects using Visual Studio 2005, 2008 and 2010.

InbufferSize