WMI Filter to exclude an application

I want to install the PowerPoint Viewer on any machine without an instance of PowerPoint installed.  My filter code is this -

SELECT * FROM Win32_Product
WHERE Name <> 'Microsoft Office PowerPoint%'

Although it installed on a test machine with PowerPoint 2007.  Do you know what the error in my syntax is?
Who is Participating?
Chris DentConnect With a Mentor PowerShell DeveloperCommented:

You should be able to capture it with:

SELECT * FROM Win32_Product WHERE NOT Name LIKE 'Microsoft Office PowerPoint%'

It's just you can't use <> or = along with wildcards (% and _), only for explicit values, LIKE has to be used and if negation of that condition is needed NOT must appear before the condition.

rosederekjAuthor Commented:
Thanks, much appreciated, that worked perfectly.
rosederekjAuthor Commented:
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