C:\Program Files (x86)\PHP\v5.X
You can use any file editor like Notepad++ or wordpad to disable/enable parameters or set values on php.ini.
Notes :
- php.ini installation path could be different, if you have made changes in default php configuration or installed additional php versions on same VPS.
- On rare occurances, modification applied on default php.ini doesn't reflect, you need to place phpinfo.php file to any of your active PHP enabled website.