raz;
Setting Windows Explorer to show hidden files and folders shouldn't have had any effect on the game...
Well, I'm glad it is working now, anyway, even if you did have to redo so much.
dddevous;
If you've resurrected Sassan and gotten the barrier lowered, just head up the path killing bandits as you go. If you get to a locked door near a teleporter shrine, head back down to where the path branches, and take the other direction. Once you kill the bandits in that area you should be able to open the door there (the bandits' barracks should be marked on your map).