createPDF installation problem

Hi Support
Just purchased the createPDF, installed it under CMSAdmin/plugins/createPDF (and the subfolders specified, ie, wktohtmlpdf and examples), but am getting the following messages when I test the server requirements.

Warning: shell_exec(): Unable to execute 'cd' in C:\Data\Websites\fordland.com.au\cmsAdmin\plugins\createPDF\createPDF.php on line 303
Failed! Run external program on server
Testing shell_exec() with command: cd
Result:
Error: No output returned from command!


Warning: exec(): Unable to fork ["C:\Data\Websites\fordland.com.au\cmsAdmin\plugins\createPDF\wkhtmltopdf\wkhtmltopdf.exe" -V] in C:\Data\Websites\fordland.com.au\cmsAdmin\plugins\createPDF\createPDF.php on line 341
Failed! Test running PDF conversion program on server
Testing pdf binary with command: "C:\Data\Websites\fordland.com.au\cmsAdmin\plugins\createPDF\wkhtmltopdf\wkhtmltopdf.exe" -V
Result: 0 bytes returned
Error: No output returned from command! (Exit code: -1)


Passed! Test downloading content from remote URL
Downloading content from url with: getPage('http://www.google.com/');
Result: HTTP status code 302


Warning: shell_exec(): Unable to execute 'SET "FIXPHPBUG=1" & "C:\Data\Websites\fordland.com.au\cmsAdmin\plugins\createPDF\wkhtmltopdf\wkhtmltopdf.exe" -q --disable-internal-links "http://www.google.com/" "C:\Data\Websites\fordland.com.au\cmsAdmin/_createPDF_temp25596.pdf" 2>&1' in C:\Data\Websites\fordland.com.au\cmsAdmin\plugins\createPDF\createPDF.php on line 125
Failed! Test converting a web page to a PDF
Created PDF with: HTML from: http://www.google.com/;
Result: 0 byte PDF returned
Error: No pdf output was returned!


Visually review PDF output
Visually inspect the PDF below, correct any error message, then make sure the graphics and fonts display as expected:


Any ideas?
Thanks