The DUN 1.4 upgrade for Windows 98 supports 128-bit encryption for both dial-up and PPTP connections and resolves situations in which PPTP connections would no longer transmit data. It includes all of the features from the earlier Windows 98 Security upgrade which strengthened password management and data encryption in PPTP connections. New features in DUN 1.4: 128-bit encryption is supported with the DUN 1.4 upgrade. The DUN 1.4 upgrade improves the stability of PPTP connections.