apache - virtual host

hi, i got a problem i don't know if it's apache of php4 i have set some virtual host in apache and when i want to get a php file, it said that the file is not found in my main host directory and not in the directory of the appropriate virtual host my config in apache is main server: documentroot c:/www virtualhost test.com documentroot of virtualhost c:/www2 when i enter url test.com/test.php i get the error c:/www/test.php not found but if i enter an url .html it work well Danny