The Dial-Up Networking combined with the Dial-Up Scripting tool allows the automated connection to external computers and networks.
The implementation of Dial-Up Scripting is slightly different between Windows 95 and Windows NT 4.0. Windows 95 itself has three different versions, the original one installed with Windows 95, the newer version available with the ISDN Accelerator Pack and the service release OSR2, and the newest version available from the Microsoft web site. Windows NT 3.51 implemented this feature in still a different way. Windows 95 and Windows NT 4.0 share the same scripting language, while Windows NT 3.51 used a different language. This is important for users who upgraded to Windows NT 4.0 from Windows NT 3.51 since the upgrade procedure preserved the old scripts and dial-up scripting methods.