Apache Friends Support Forum

hello
i had installed xampp 1.8.2 a week ago and then started working ,it was working fine then, but when today i tried implementing a new program jjust a simple hi program
<?php
echo "hi";
?>

http://localhost/xampp/hi.php
i was getting the following error

Object not found!

The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again.

If you think this is a server error, please contact the webmaster.
Error 404
localhost
Apache/2.4.4 (Win32) OpenSSL/0.9.8y PHP/5.4.16

please do help.

What is the full path hi.php is saved to?