RewriteEngine On
#
# Rules
#

# rewrite if the given string is not an already existing file
RewriteCond %{REQUEST_FILENAME} !-f
# rewrite if the given string is not an existing directory
RewriteCond %{REQUEST_FILENAME} !-d
# rewrite to Lanas.pl with QUERYSTRING appended
RewriteRule (.*) /cgi-bin/Lanas.pl