make the uninstaller work

toolkit/mozapps/installer/windows/wizard/setup/ifuncns.c

@@ -858,6 +858,14 @@ HRESULT FileCopySequential(LPSTR szSourcePath, LPSTR szDestPath, LPSTR szFilenam
       lstrcat(szDestFullFilename, szFilenameExtensionOnly);
     }
 
+    // XXXben (11/06/2003) - I'm not sure if this is exactly the right fix
+    // for the uninstall log not being copied to the new location - this 
+    // certainly works in Seamonkey's installer, but it seems like an obvious
+    // and convenient band-aid. 
+    // Create the folder if it does not exist. 
+    if (GetFileAttributes(szDestPath) != FILE_ATTRIBUTE_DIRECTORY)
+      CreateDirectory(szDestPath, NULL);
+
     CopyFile(szSourceFullFilename, szDestFullFilename, TRUE);
   }