.htaccess redirect all sub directories under sub directory -

i want redirect sub directories under sub directory root/windows/ root/windows/ct.php

file structure of site like

root/windows/ct.php 

redirect these type of url

http://www.site.com/windows/games/ or http://www.site.com/windows/games http://www.site.com/windows/software/ or http://www.site.com/windows/software 

to

http://www.site.com/windows/ct.php?ct=games http://www.site.com/windows/ct.php?ct=software 

i trying redirects url sub directory root/windows/ct.php

rewriterule ^([^/]*)/ /site/windows/?ct=$1 [l] rewriterule ^([^/windows]*)/ /site/windows/?ct=$1 [l] // 1 shows internal server error 

complete .htaccess code

options +followsymlinks rewriteengine on  <ifmodule mod_rewrite.c> rewriterule ^(error) - [l] rewriterule ^[^/]*/[^/]*/(.*\.html) /site/error/400/ [l] rewriterule ^([^/]*)/(.*\.html) /site/software/?link=$1&id=$2 [l] rewriterule ^([^/]*)/ /site/windows/?ct=$1 [l] rewriterule ^sitemap\.xml$ sitemap.php [l] rewriterule ^rss/(.*?)\.xml$ rss/$1.php [l] </ifmodule>  errordocument 400 /site/error/400/ 

i not know .htaccess please see , suggest possible way it. thanks.

give try:

<ifmodule mod_rewrite.c> options +followsymlinks -multiviews  rewriteengine on rewritebase /  rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^windows/([^/]+)/?$ /windows/ct.php?ct=$1 [l] </ifmodule> 

for localhost use one:

<ifmodule mod_rewrite.c> options +followsymlinks -multiviews  rewriteengine on rewritebase /site/  rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^windows/([^/]+)/?$ windows/ct.php?ct=$1 [nc,l] </ifmodule>