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The scripting sample in this topic shows you how to use the Windows Update Agent (WUA) to scan, download, and install a specific update. The update can be specified by its title.
The sample searches for a specific software update, downloads the update, and then installs the update. For example, a user can use this method to determine if a critical security update is installed on a computer. If the update isn't installed, the user can ensure that the update is downloaded and installed. The user can also ensure that they are notified about the status of the installation.
The sample update is identified by the update title in Title Property of IUpdate. The title of the update that is suggested in this sample is "Update for Windows Rights Management client 1.0."
Note
For info about how to search, download, and install all the updates that apply to a specific application, see Searching, Downloading, and Installing Updates.
Before you attempt to run this sample, note the following:
Note
When conducting scans, you may experience higher than normal memory usage. It is recommended to make necessary adjustments to your system to allocate sufficient memory resources for the scanning process. This may include configuring additional processors and modifying the pagefile. Ensuring adequate memory allocation will help in completing the scan efficiently and effectively.
Important
This script is intended to demonstrate the use of the Windows Update Agent APIs, and provide an example of how developers can use these APIs to solve problems. This script is not intended as production code, and the script itself is not supported by Microsoft (though the underlying Windows Update Agent APIs are supported).
Set updateSession = CreateObject("Microsoft.Update.Session")
updateSession.ClientApplicationID = "Sample Script"
'Get update title to search for
WScript.Echo "Enter the title of the update: " & _
"(for example, Update for Windows Rights Management client 1.0)"
updateTitle = WScript.StdIn.Readline
WScript.Echo vbCRLF & "Searching for: " & updateTitle & "..."
Set updateSearcher = updateSession.CreateupdateSearcher()
'Search for all software updates, already installed and not installed
Set searchResult = _
updateSearcher.Search("Type='Software'")
Set updateToInstall = CreateObject("Microsoft.Update.UpdateColl")
updateIsApplicable = False
'Cycle through search results to look for the update title
For i = 0 To searchResult.Updates.Count-1
Set update = searchResult.Updates.Item(i)
If UCase(update.Title) = UCase(updateTitle) Then
'Update in list of applicable updates
'Determine if it is already installed or not
If update.IsInstalled = False Then
WScript.Echo vbCRLF & _
"Result: Update applicable, not installed."
updateIsApplicable = True
updateToInstall.Add(update)
Else
'Update is installed so notify user and quit
WScript.Echo vbCRLF & _
"Result: Update applicable, already installed."
updateIsApplicable = True
WScript.Quit
End If
End If
Next
If updateIsApplicable = False Then
WScript.Echo "Result: Update is not applicable to this machine."
WScript.Quit
End If
WScript.Echo vbCRLF & "Would you like to install now? (Y/N)"
stdInput = WScript.StdIn.Readline
If (strInput = "N" or strInput = "n") Then
WScript.Quit
ElseIf (stdInput = "Y" OR stdInput = "y") Then
'Download update
Set downloader = updateSession.CreateUpdateDownloader()
downloader.Updates = updateToInstall
WScript.Echo vbCRLF & "Downloading..."
Set downloadResult = downloader.Download()
WScript.Echo "Download Result: " & downloadResult.ResultCode
'Install Update
Set installer = updateSession.CreateUpdateInstaller()
WScript.Echo vbCRLF & "Installing..."
installer.Updates = updateToInstall
Set installationResult = installer.Install()
'Output the result of the installation
WScript.Echo "Installation Result: " & _
installationResult.ResultCode
WScript.Echo "Reboot Required: " & _
installationResult.RebootRequired
End If
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Nov 19, 11 PM - Nov 21, 11 PM
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Module
Update Windows clients - Training
This module describes the various methods for applying updates to Windows and explains how to configure Windows update in an organization.