如何正确配置.htaccess + fastcgi？

Question

There is a bunch of Fastcgi + Apache on Win 2003.

http://www.xxx.ru works

and http://www.xxx.ru/api/get_privacy_policy for some reason does not work. Tell me what I'm doing wrong?

Options -Multiviews
<IfModule mod_rewrite.c>
    RewriteEngine On

    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-s
    RewriteRule ^(.*)$ api.php?x=$1 [QSA,NC,L]

    RewriteCond %{REQUEST_FILENAME} -d
    RewriteRule ^(.*)$ api.php [QSA,NC,L]

    RewriteCond %{REQUEST_FILENAME} -s
    RewriteRule ^(.*)$ api.php [QSA,NC,L]
</IfModule>