Ilfak Guilfanov has released an unofficial patch for the Windows WMF exploit we posted about earlier. I highly recommend you to install this patch. Reports from McAfee reveal that 6% of their customers have encountered the virus, which is a very very high number.
This is version 1.1, working on both Windows 2000 and XP SP1 and SP2. Remember to uninstall this patch before applying the official patch from Microsoft, whenever it is released, of course.