unzip file on Ftp server

Some hosting server (some free hosting provider) doesn't allow you to unzip your zip file
try to connect with a shell(ssh or telnet) and verify if tar exist
else
you have to choose between 3 solutions:
1-use a web based ftp client :
www.net2ftp.com
2-use a php script to do it for you :
but you need to install the php-shell on your server or enable it
<?php
echo 'unziping this';
$unzip = shell_exec(" unzip name.zip");
?>
in some server you get
Warning: shell_exec() has been disabled for security reasons

3- logiciel zipdeploy



http://www.4shared.com/get/o_dOYcQO/ZipDeploy-W.html