Install eFront LMS

Hallo. I've been trying to install eFront LMS on AlterVista.

I have tried to install it offline (usng XAMPP) and it asked me to make change on php.ini file.

But since I can't modify AlterVista php.ini file, I need to know how to use .htaccess to make this change:

post_max_size = 128

Thanks priorly :)

You can do it by yourself :-)