The InstallNCache and UnInstallNCache scripts internally uses methods of Win32_Product class. If you got any error related to this class during script execution, it means that Win32_Product class is not installed on that machine.

On Windows 2003 the Win32_Product class some times isn't installed by default. You can install it with Add/Remove Windows Component.

 

Steps for Installing Win32_Product class :

 

Step 1:

 

Go to Add/Remove Windows Components.

 

Step 2:

 

Look for the "Management and Monitoring Tools". If it is uncheck, make it checked. Click on Details Button.

 

 

Step 3:

 

Look for the "WMI Windows Installer Provider". Make it checked. Click OK.

 

 

 

See Also

Configuring PowerShell Environment | Remote Installation/Uninstallation | Activate NCache

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