What Is Windows PowerShell? - Professional SQL Server 2008 Administration with Windows PowerShell - page 3

❑ Windows Remote Management 2.0 CTP3 for Windows PowerShell remoting and background

jobs

❑ Microsoft .NET Framework 3.5 Service Pack 1 for Windows PowerShell Integrated Scripting

Environment (ISE) and the Out-GridView cmdlet

If .NET Framework 2.0 is not installed on your computer, the error message shown in Figure 1-1 will pop
up when you try to install Windows PowerShell 2.0 CTP3.

Figure 1-1

After installing the .NET Framework, if you continue to install on a non-standard operating system such
as Windows Server 2000, Windows NT, and so on, you may get the error shown in Figure 1-2.

Figure 1-2

Although Figure 1-2 shows v1.0 in the title bar and file path, it is actually PowerShell 2.0 CTP3. Com-
munity Technology Preview, also known as CTP3, is basically the bug fix that Microsoft relies on, adding
new features based on feedback from the technology community. The folder may be changed to v2.0 once
the release to manufacturing (RTM) version is released.

In order to check the prerequisites for the PowerShell installation, we created a batch file to run all the
necessary checks. Listing 1-1 shows the MS-DOS batch script, CheckPowershellPreqs.bat ,whichuses
Windows Management Instrumentation Command-line (WMIC) to check the requirements before you
install Windows PowerShell. WMIC enables you to access WMI information via the command line. In
some respects, you can think of WMIC as an early prototype of PowerShell. However, WMIC can only
output its results as text. It doesn't return programming objects that can be further processed, as Window
PowerShell does, and as you will see later.

Listing 1-1: CheckPowershellPreqs.bat

@ECHO Off

REM *****************************************************************
REM *Objective: TO check if the current windows version is *
REM * Compatible for PowerShell 2.0 and its pre-requisites*
REM *Created by: Yan and MAK *

REM *Created Date: 2008/09/01 *

Continued
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