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Batch files using VB Script
Windows Scripting Host is a new component available with Windows 98, Windows NT SP4 and is also downloadable from the Microsoft site. This allows you to write very powerful batch files using VBScript .VBS files.
Along with this functionality, a new object is made available for programming. The base object is called Wscript.wshshell. This object provides extensive functionality required for managing shell, network, registry management functions. Here is a sample that can be used to create a desktop icon using Windows Shell Script.
' This sample demonstrates how to use the WSHShell
' object to create a shortcut on the desktop.
Dim WSHShell
Set WSHShell = _
WScript.CreateObject("WScript.Shell")
Dim MyShortcut, MyDesktop, DesktopPath
' Read desktop path using WshSpecialFolders object
DesktopPath = WSHShell.SpecialFolders("Desktop")
' Create a shortcut object on the desktop
Set MyShortcut = _
WSHShell.CreateShortcut(DesktopPath & _
"\Shortcut to notepad.lnk")
' Set shortcut object properties and save it
MyShortcut.TargetPath = _
WSHShell.ExpandEnvironmentStrings _
("%windir%\notepad.exe")
MyShortcut.WorkingDirectory = _
WSHShell.ExpandEnvironmentStrings("%windir%")
MyShortcut.WindowStyle = 4
MyShortcut.IconLocation = _
WSHShell.ExpandEnvironmentStrings _
("%windir%\notepad.exe, 0")
MyShortcut.Save
Here are some important methods of this wshshell object.
Method
Description
CreateShortcut
Creates a WshShortcut object and returns it
ExpandEnvironmentStrings
Expands a PROCESS environment variable and returns the result string
Popup
Pops up a message box window containing a specified message
RegDelete
Deletes, from the registry, a specified key or value
RegRead
Returns a specified key or value from the registry
RegWrite
Sets a specified key or value in the registry
Run
Creates a new process that executes a specified command with a specified window style
Here are the details of the WshShortcut object.
Property
Description
Arguments
Parameters to a shortcut object
Description
A description of a shortcut object
Hotkey
The hotkey of a shortcut object
IconLocation
The icon location of a shortcut object
TargetPath
The target path of a shortcut object
WindowStyle
The window style of a shortcut object
WorkingDirectory
The working directory of a shortcut object
Save is the only method for this object.
The .VBS files can be simply run as Batch files.
The WScript object has the following methods:
Method
Description
CreateObject
Creates an object and establishes its event handling
DisconnectObject
Disconnects a previously connected object from Windows Scripting Host
Echo
Displays parameters in window or at a command prompt in a command prompt window
GetObject
Retrieves an Automation object from a file
Quit
Quits execution with a specified error code
The script can accept command line arguments like the batch files. The Arguments property of WScript exposes these parameters.
This code will display all parameters passed on a command line:
' Display all command-line parameters
Set objArgs = WScript.Arguments
For I = 0 to objArgs.Count - 1
WScript.Echo objArgs(I)
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