Installation for Windows XP:

1)  Copy the ADV file to the Shared DocumentsThe Witcher folder.  Easiest way to find this is in My Computer.  You should see a "m1_module.adv" file lready in this folder.  If not, it's the wrong folder.

2)  Enjoy.

Installation for Windows Vista:

1)  Copy the ADV file to the PublicPublic DocumentsThe Witcher folder.

2)  Enjoy.