[PROBLEM] Direct Access to Pi

[syco]

Hi guys,

I have a maybe stupid question, but I can not find
the solution right now.

I want to access the Pi's directories in Windows, but
not bei SSH/Putty. So, I want to reach the file structure
of the Pi. Like seeing files in the Explorer view.

Before an update some weeks ago, that was easily
possible. I just had to click on "Xbian-Beamer" in my
network list and then I saw all the files and directories.

Now that seems to be gone. There is still a link, but
that leads to the new (?) web interface, where you
can see the movies/series/music in Xbian (which is
nice, too, but not what I need right now).

So, can you tell me how to gain access to the files and
directories again? Maybe without installing any programmes
or so?

Thank you, mates.