@@ -36,6 +36,7 @@ class FileDict(SortedDict):

         return md5

     def record_hardlink(self, relative_file, dev, inode, md5):

+        if dev == 0 or inode == 0: return # Windows

         if dev not in self.hardlinks:

             self.hardlinks[dev] = dict()

         if inode not in self.hardlinks[dev]:

@@ -5,6 +5,7 @@ class HashCache(object):

         self.inodes = dict()

     def add(self, dev, inode, mtime, size, md5):

+        if dev == 0 or inode == 0: return # Windows

         if dev not in self.inodes:

             self.inodes[dev] = dict()

         if inode not in self.inodes[dev]:

@@ -27,7 +28,10 @@ class HashCache(object):

                     self.inodes[d][i][c]['purge'] = True

     def unmark_for_purge(self, dev, inode, mtime, size):

-        d = self.inodes[dev][inode][mtime]

+        try:

+            d = self.inodes[dev][inode][mtime]

+        except:

+            return

         if d['size'] == size and 'purge' in d:

             del self.inodes[dev][inode][mtime]['purge']