IIS 5.1 does not run PHP properly under root directory, but fine in all other folders

Hi guys,

I am having a bit of a problem with my IIS. I am not sure why but some of my php files cannot be executed properly when they are being executed in the root directory (eg. http://localhost/ or via my IP). However, if I run the same code under a next directory level (eg. http://localhost/paul/ or http://localhost/ben/ or http://localhost/michael/jordan/), the code would run just fine.

So I can conclude there is nothing wrong with my code, but something to do with IIS instead. Then again, what could be wrong? I have checked all premission setting and they are the same for all directories including root. I am very lost.

I am running Win XP
IIS 5.1 as local host
PHP Version 4.3.7

Many thanks

What do you mean by "cannot be executed properly"

Most php lines are read and can be displayed properly, but when it comes with COOKIE or SETCOOKIE, it keeps on returning me a header error.

Anyway, that is not important now as I have managed to solve this problem, but i have no idea how or why it is working now.

I tested the php code line by line, to see exactly which part is causing the problem. I copied and pasted each section of the code from index.php (the file that cause the problem) to another file, say temp.php, and tested temp.php each time to see if it runs correctly. I did it till the end of the file, and suprisingly, not a single fault appeared.

So I end up with two indentical files, same file size, same code inside and under the same root directory, except with different names (index.php and temp.php). temp.php runs flawlessly, and index.php still does not work.

I renamed the troubled file index.php to something else, and renamed temp.php to index.php, and yes, it worked.

Why? I do not have a clue.