Rsync and windows sharing

[Erwane Breton]

Hi,

I search a way to do rsync on a window share without mount the share. 
Why ? because i don't want to run my script as root for mount and unmount the 
share. (it's bad to run scripts as root :-) )
Alternative way is to install rsync on cygwin at windows, but i can't because 
windows computer are not mine.

Why rsync (made by the creator of Samba) can't read a window share ? Can't 
interact with smbclient ?

I'm using rsync 2.5.7 on FreeBSD 4.9-STABLE with options NETSMB, NETSMBCRYPTO 
and SMBFS in kernel.

Thanks for answers and solutions

Erwan Breton