PDF Comparator integration with sahi

vinotht

1.As per the following link http://ashwinilalit.blogspot.in/2013/02/validating-pdf-using-sahi.html installed DiffPDF-4.0.2-win32.msi but lot of confusion in passing the parameter for the code provide.
var $dirPathBat;//path to pdfcomparator
var $dirPathPdf;//dir path of the PDF files baseline and the one //generated through the website
var $str = new Array();
$str[0] = $dirPathBat+"comparePdfTool/comparedBat.bat";
$str[1] = $dirPathPdf+$file1; //baselined
$str[2] = $dirPathPdf+$file2; //downloaded
$str[3] = $dirPathPdf+$result; //result file path

$obj = java.lang.Runtime.getRuntime();
$obj.exec($str, null, new java.io.File($dirPathBat+"comparePdfTool"));
var $fileContents = _readFile($dirPathPdf+"Pdf/"+$inputObject.result);
_assertTrue($fileContents=="No differences detected.\r\n","File does not match");

2.$result and $inputObject are creating lot of confusion what to be passed.

3.After installing DiffPDF-4.0.2-win32.msi there was no file called as comparedBat.bat in the following C:/Program Files/Qtrac/DiffPDFcomparePdfTool/comparePdfTool/comparedBat.bat[my self created the following path DiffPDFcomparePdfTool/comparePdfTool/comparedBat.bat with a batch file]

4.what all are command need be passed for the created batch file.

5.How the result will posted to $inputObject.result file please explain.

Please describe with the integration of PDF Comparator for sahi with detail step asap.And let me know any thing more info needed.

Regards
Murali