One of the four vulnerabilities is related to mishandling of Windows Metafile (WMF) and Enhanced Metatfile (EMF) images. Users are advised to use caution prior to opening up email file attachments possessing a WMF or EMF format ? particularly unsolicited files. Please see http://www.microsoft.com/technet/security/Bulletin/ms04-032.mspx for further information. Due to the large number of recently released Microsoft critical security patches, it is recommended that you verify that all outstanding Microsoft critical patches are applied by using your Internet Explorer Web browser to visit: http://www.windowsupdate.com.
10/20: Update: we have received reports that before installing this patch to Dell Optiplex GX-150 and GX-150 computers running Windows 2000, the Intel Ultra ATA storage driver (IntelATA.sys) may need to be uninstalled. Otherwise the computer may not reboot properly. Booting the computer to safe mode and using the Control Panel Add/Remove programs function to uninstall the driver should resolve the problem.