Dial-Up Scripting Command Language

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Term Paper Title	Dial-Up Scripting Command Language
# of Words	1799
# of Pages (250 words per page double spaced)	7.2

Dial-Up Scripting Command Language
For Dial-Up Networking Scripting Support

Copyright (c) 1995 Microsoft Corp.

Table of Contents

1.0     Overview
2.0     Basic Structure of a Script
3.0     Variables
     3.1     System Variables
4.0     String Literals
5.0     Expressions
6.0     Comments
7.0     Keywords
8.0     Commands
9.0     Reserved Words

1.0   Overview

Many Internet service providers and online services require you to manually enter information, such as your user name and password, to establish a connection. With Scripting support for Dial-Up Networking, you can write a script to automate this process.

A script is a text file that contains a series of commands, parameters, and expressions required by your Internet service provider or online service to establish the connection and use the service. You can use any text editor, such as Microsoft Notepad, to create a script file. Once you've created your script file, you can then assign it to a specific Dial-Up Networking connection by running the Dial-Up Scripting Tool.

2.0   Basic Structure of a Script

A command is the basic instruction that a script file contains. Some commands require parameters that further define what the command should do. An expression is a combination of operators and arguments that create a result. Expressions can be used as values in any command.  Examples of expressions include arithmetic, relational comparisons, and string concatenations.

The basic form of a script for Dial-Up Networking follows:

;
; A comment begins with a semi-colon and extends to
; the end of the line.
;

proc main
;  A script can have any number of variables
;  and commands

     variable declarations

     command block

endproc

A script must have a main procedure, specified by the proc keyword, and a matching endproc keyword, indicating the end of the procedure.

You must declare variables before you add commands. The first command in the main procedure is executed, and then any subsequent commands are executed in the order they appear in the script. The script ends when the end of the main procedure is reached.

3.0   Variables

Scripts may contain variables. Variable names must begin with a letter or an underscore ('_'), and may contain any sequence of upper- or lower-case letters, digits, and underscores. You cannot use a reserved word as a variable name. For more information, see the list of reserved words at the end of this document.

You must declare variables before you use them. When you declare a variable, you must also...

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