Thanks for the reply, Bob. I have a bootstrapper that installs the correct 
version, but I do want to add a detection in the MSI that blocks install if it 
isn't already there. I figured out how to use DirectorySearch and FileSearch 
which seems to do the trick.

I'll take a peek at the SDK documentation as well.

Neil

From: Bob Arnson [mailto:[EMAIL PROTECTED]
Sent: March-19-08 8:08 AM
To: Neil Enns
Cc: wix-users@lists.sourceforge.net
Subject: Re: [WiX-users] Detecting the version of an installed file?

Neil Enns wrote:
I'm working on an installer that needs to detect whether a specific version of 
DirectX 9.0 is installed (9.0c).

The DirectX SDK says: "Don't do that." The suggested approach is to always 
install the version of DirectX you need and let the DirectX installer update 
(or not) the installed DirectX.



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