V-44SW Updates & Treiber V-440HD V-44SW Serial Data Tool (Sample Program Source ) This document describes the functions of V440HDSerialData.dll. Additional remarks regarding the SerialDataTool.exe source are also included as supplementary data. V-440HD V-44SW Serial Data Tool (Sample Program) This tool is used for connecting a V-440HD (running Version 2.0 or above) and a V-44SW to a personal computer via the computer's serial interface and carrying out the transmission/reception of values for the V-440HD/V-44SW's settings.