Getting 500 Error, PHP Warning and Fatal Error

[mossberg]

I'm a PHP newbie and I'm getting the following error when viewing a form that someone created for me on another server using Form Tools. I'm able to view Form Tools just fine. But when I try to view the form that was created or verify the location of the form in Form Tools I get this error. I've read through the forum and made a change to my PHP.ini file for default include_path. I could not find if PEAR is required to run Form Tools. My PEAR folder only has a single file in it - go-pear.phar.

I'm on a Windows 2008 Server R1 (64bit) running IIS 7, PHP through Fast CGI and MySQL server 5.1. Except for this issue PHP is running fine on the server. I'm running PHPMyAdmin and a couple other PHP apps just fine.

Here is the error. Appreciate any suggestions on how to troubleshoot this issue.

Code:

PHP Warning:  require_once(C:\Sites\www\custom\templates): failed to open stream: Permission denied in C:\Sites\www\custom\templates\info_request.php on line 3
PHP Fatal error:  require_once(): Failed opening required '' (include_path='.;c:\php\includes') in C:\Sites\www\custom\templates\info_request.php on line 3

[mossberg]

Nudge...

Anyone have any suggestions here? I'm really at a loss why I'm getting this error. I don't think its a permission error as I've allowed full control in IIS for these directories and files and still no luck.

Appreciate any advice on what to try next.

Thanks...