To install WUA and Windows Installer 3.0 at a client, package the files downloaded from Microsoft Corporation's web page and remotely install them.

If WUA and Windows Installer 3.0 are already installed at a client, there is no need for remote installation. You can determine whether Windows Installer 3.0 is already installed at a client by checking the values in Windows Update Agent and Windows Installer in the system information collected from the client. If the value in Windows Update Agent is not N/A, this means that WUA or later can be used. Note that if "Wsusscn2.cab" is used as the database file for Windows Update Agent, the value of Windows Update Agent must be 5.8.0.2469 or greater.

The URL for Microsoft Corporation's web page from which you can download WUA is described below:

Downloading WUA 3.0:

http://support.microsoft.com/kb/946928/en-us

Downloading WUA 2.0:

http://support.microsoft.com/kb/926464/en-us

WUA database file wsusscan.cab:

http://support.microsoft.com/kb/926464/en-us

MBSA 1.2.1 database file:

http://go.microsoft.com/fwlink/?LinkId=18922

For details, see If you use a non-Microsoft solution that uses the Wsusscan.cab file together with the supported WUA public API.

To use silent installation to remotely install the downloaded WUA and Windows Installer 3.0:

1. From the Start menu, choose Run. Add the argument /? to the full path to the execute file for the downloaded WUA and Windows Installer 3.0, and execute them.
   A list of available arguments appears. For remote installation, use the following two arguments:
   
   • Argument for not displaying anything during installation
   • Argument for not restarting the computer after installation
2. Create a batch file.
   Create a batch file for silently installing the execute file for WUA and Windows Installer 3.0. Create the batch file such that the execute file and the batch file are deleted after the silent installation is completed.
   A batch file creation example is shown below.
   In this creation example, the downloaded execute file is named wua20dl.exe, and the batch file to be created is named inst_del.bat. The remote installation destination is c:\temp.
   

   Figure 7-7 Example of creating a batch file

   

   Store the created batch file in the same folder that stores the downloaded execute file.
   
3. Package the folder in which the files are stored.
   For details about the packaging method, see 2.1 Packaging procedure.
   During packaging, on the External Program page in the Packaging dialog box, specify the following:
   
   • For After installation, specify the full path to the batch file following remote installation.
   • In the External Program Options dialog box, which opens when the Details button is clicked from After installation, select Exit code and Continues.
4. Remotely install the created package.
   For the remote installation method, see 2.3.1 Remote installation execution procedure.
   

You can check whether Windows Installer 3.0 has been successfully installed by collecting system information from the client and checking the values in Windows Update Agent and Windows Installer.

Because the database file for WUA is frequently updated, distribute the latest one to the client before patch information detection.

You can download the latest database file "Wsusscn2.cab" for WUA, from Microsoft Corporation's web page, the URL of which is given below:

http://support.microsoft.com/kb/926464/en-us

For details, see descriptions in If you use a non-Microsoft solution that uses the Wsusscan.cab file together with the supported WUA public API.

Package the downloaded database file and distribute it so that it is stored in the following directory:

client-installation-directory\CLIENT\WUA

To install the package in this directory, during packaging, specify the following for Installation target directory on the System Conditions page:

• Drive: None
• Directory: %NETMDMP%\CLIENT\WUA

If a database file is already stored in this directory, overwrite it.

If no database file is stored, detection using WUA is not executed. In this case, if the detection target satisfies the prerequisite conditions for detection using MBSA 1.2.1, detection using MBSA 1.2.1 is executed.