Advanced Windows PowerShell Scripting Video Training

Advanced Windows PowerShell Scripting Video Training
Advanced Windows PowerShell Scripting Video Training

Sunday, July 26, 2009

Enumerate the OS version and Service Pack

This VBScript utilizes WMI to discover the Service Pack and OS version. We utilized the Scriptomatic from the Microsoft Scripting Center(http://www.microsoft.com/technet/scriptcenter/default.mspx) to discover the correct object properties to script for.
First we issue the command On Error Resume Next to tell the script to continue executing even if an error is detected.
We then tell the script which computer to script against. This is done by setting a variable strComputer to “.”. this tells the script to execute on the local computer. By replacing the period with the name or IP address of a different computer, the script will execute against that computer. This asums the you have local administrative rights on that computer.
Line 3 will connect to the client.
Line 4 will gather a collection or all objects in the Win32_OperatingSystem on the target computer.
He For..Next loop will return the service pack and OS version.

On Error Resume Next

strComputer = "."

Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")

Set colItems = objWMIService.ExecQuery("Select * from Win32_OperatingSystem",,48)

For Each objItem in colItems

Wscript.Echo "ServicePackMajorVersion: " & _
objItem.ServicePackMajorVersion

Wscript.Echo "ServicePackMinorVersion: " & _
objItem.ServicePackMinorVersion

Wscript.Echo "Version: " & objItem.Version

Next

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