Description:
------------
PHP ISAPI under IIS 6.x (Windows 2003 Server) reports an inconsistent working directory ONLY in the root of a web site. The working directory is perfectly consistent when checked in a subdirectory of a web site.

I have seen similar bugs reported but they were either BOGUS or no longer open. I understand ISAPI is unstable (according to Bug #42460) but this bug only seems to occur in the root of a web site.

Say the root of your web site is D:\websites\testsite.

If you create a php file with the following code:

<?php
  echo getcwd()."<br />\n";
?>

and place it in the above directory then load it (http://testsite/cwd.php), loading will produce a random directory. If you place this file in a subdirectory, say D:\websites\testsite\testdir, and load the page (from the new location, http://testsite/testdir/cwd.php) it will produce the expected results: D:\websites\testsite\testdir.

Reproduce code:
---------------
<?php
  echo getcwd()."<br />\n";
?>


Expected result:
----------------
In the root folder of your website (say, D:\websites\testsite) you would expect D:\websites\testsite.

In a subdirectory of your website (say, D:\websites\testsite\testdir) you would expect just that, D:\websites\testsite\testdir.

Actual result:
--------------
In the root folder of your website (say, D:\websites\testsite) you get random results, anything from C:\WINDOWS\System32 to various subdirectories in your website (or other websites if you host more than one.)

In a subdirectory of your website (say, D:\websites\testsite\testdir) it seems to work fine.