如何在Windows 8上运行的Laravel 4上安装wkhtmltophp？

I have a WAMP server on Win 8 running Laravel 4 and I'm trying to get wkhtmltophp to work properly.

I ran the Windows installation program I downloaded from here (the 64-bit "Windows (MSVC 2013)").

I'd first installed it into C:\Program Files\wkhtmltopdf, then I tried installing it into the laravel /vendor directory under C:\Program Files (x86)\Apache Group\Apache2\htdocs\gitt\vendor\wkhtmltopdf

naturally I changed my folder to match under /app/config/local/laravel-pdf.php and in this file I have

return array(
    //'bin' => '/usr/bin/wkhtmltopdf'
    'bin' => base_path() . '/vendor/wkhtmltopdf/bin'
);

And every time I run the script, I get the error "proc_open(): CreateProcess failed, error code - 5"

Not sure what I'm missing. Another developer, on a Mac, was able to install it on his side, so laravel also has the /vendor/mikehaertl/phpwkhtmltopdf installed, so I changed line 92 to:

class WkHtmlToPdf
{
    #protected $bin = '/usr/bin/wkhtmltopdf';
    protected $bin = '/Program Files (x86)/Apache Group/Apache2/htdocs/gitt/vendor/wkhtmltopdf/bin/wkhtmltopdf.exe';
etc......

Still got the same error. I'm lost! Any help would be greatly appreciated! :)