Microsoft
VBScript (Visual Basic Script) is a general-purpose, lightweight and active
scripting language developed by Microsoft that is modelled on Visual Basic.
Nowadays, VBScript is the primary scripting language for Quick Test
Professional (QTP), which is a test automation tool.
This tutorial will teach you how to
use VbScript scripting language in your day-2-day life of any Web based or
Automation project development.
VBScript stands for Visual Basic Scripting that forms a subset of
Visual Basic for Applications (VBA).
VBA is a product of Microsoft which
is included NOT only in other Microsoft products such as MS Project and MS
Office but also in Third Party tools such as AUTO CAD.
Features of VBScript
·
VBScript is a
lightweight scripting language, which has a lightning fast interpreter.
·
VBScript, for the most
part, is case insensitive. It has a very simple syntax, easy to learn and to
implement.
·
Unlike C++ or Java,
VBScript is an object-based scripting language and NOT an Object-Oriented
Programming language.
·
It uses Component
Object Model (COM) in order to access the elements of the
environment in which it is executing.
·
Successful execution
of VBScript can happen only if it is executed in Host Environment such as
Internet Explorer (IE), Internet Information Services (IIS) and Windows Scripting Host (WSH)
VBscript – Version
History and Uses
VBScript was introduced by
Microsoft way back in 1996 and the first version was 1.0. The Current Stable
version of VBScript is 5.8, which is available as part of IE8 or Windows 7.
The VBScript usage areas are
aplenty and not restricted to the below list.
·
VBScript is used as a
scripting language in one of the popular Automation testing tools – Quick Test
Professional abbreviated as QTP
·
Windows Scripting
Host, which is used mostly by Windows System administrators for automating the
Windows Desktop.
·
Active Server Pages (ASP),
a server side scripting environment for creating dynamic webpages which uses
VBScript or Java Script.
·
VBScript is used for
Client side scripting in Microsoft Internet Explorer.
·
Microsoft Outlook
Forms usually runs on VBScript; however, the application level programming
relies on VBA (Outlook 2000 onwards).
Disadvantages
·
VBscript is used only
by IE Browsers. Other browsers such as Chrome, Firefox DONOT Support VBScript.
Hence, JavaScript is preferred over VBScript.
·
VBScript has a Limited
command line support.
·
Since there is no
development environment available by default, debugging is difficult.
Where VBScript is Today
?
The current version of VBScript is
5.8, and with the recent development of .NET framework, Microsoft has decided
to provide future support of VBScript within ASP.NET for web development.
Hence, there will NOT be any more
new versions of VBScript engine but the entire defect fixes and security issues
are being addressed by the Microsoft sustaining Engineering Team.
However, VBScript engine would be
shipped as part of all Microsoft Windows and IIS by default.
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