I installed Apache 2.2, PHP/5.2.13 and MySQL on my Windows XP to create a test platform. but somehow I can't run the installation script.
it gives me the following error:

C:\Inetpub\forum\install>c:\php\php-cgi index.php
PHP Notice: Undefined index: HTTP_HOST in C:\Inetpub\forum\install\index.php o
n line 23
X-Powered-By: PHP/5.2.13
Content-type: text/html

can anyone help me on this?
Thanks!