in the download for PHP 5.3, there is no php5ts.dll

found php5ts.dll

PHP 5.3 not working aft er the following changes were made:

IIS: properties->home directory->configuration   C:\PHP\php5.dll
with GET,HOST,POST,DEBUG


doc_root = "C:\inetpub\wwwroot"
tried each of :
;extension=php_sqlsrv_53_nts_vc9.dll
;extension=php_sqlsrv_53_nts_vc6.dll
;extension=php_sqlsrv_53_ts_vc9.dll
extension=php_sqlsrv_53_ts_vc6.dll

cgi.force_redirect = Off

IIS 5.1 with cgi 1.5 RC

extension_dir = "C:\PHP\ext"

contains all 4 files:
php_sqlsrv_53_nts_vc9.dll
php_sqlsrv_53_nts_vc6.dll
php_sqlsrv_53_ts_vc9.dll
php_sqlsrv_53_ts_vc6.dll
added to XP Prof SP3 path: ;C:\PHP;C:\PHP\ext

also created (just in case) PHPRC environment variable (alongside path)
containing C:\PHP;C:\PHP\ext

I gave IUSR_LANDON all powers

http://207.254.225.224:8080/phpinfo.php

all firewalls set to accept 8080
<?php
       phpinfo();
?>

_______________________________________________RESULTS
  The website cannot display the page
HTTP 500 
   Most likely causes:
•The website is under maintenance.
•The website has a programming error.

   What you can try:
     Refresh the page.

     Go back to the previous page.

     More information

This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying.
For more information about HTTP errors, see Help.

Should I remove the old versions (not used here) of ntwdblib.dll?