All Mac users who occasionally mount and use NFS or SMB shares know the problem with these invisible .DS_Store files. The Finder will clutter all network shares with these unnecessary and useless dotfiles. The same goes for CDs, Memory Sticks, Firewire Harddrives that are shared with Windows or Linux users.
HastalaDS_Store is an application that injects code into the Finder that stops the Finder creating .DS_Store files. When the Finder is restarted, it gains normal functionality again. Therefore I recommend putting Hastala_DS_Store in the Login Items, so it is started every time you log in.