Max File upload...

Hi all,

I deployed a silent XML application
that contain a directAction for submitting a file in a server...

so I prepare a "flat" form
containing a file input type
that have the action tag bound to my WOdir.action...

unfortunatly
it don't works with files too big (I still can't determine the exact  
size limit)...

There's a MAX file size?
I know where to chage that setting in php (file php.ini)
but there's a place where to do the same in WO?
or do I modify Apache directives?

thanks
gian luca