WiX checking for .NET Framework 4 [closed]

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I am trying to implement a check to see if the .NET framework is installed when running the installer.

I added the following:

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:netfx="http://schemas.microsoft.com/wix/NetFxExtension">

        <PropertyRef Id="NETFRAMEWORK40FULL"/>
        <Condition Message="This application requires .NET Framework 4.0. Please install the .NET Framework then run this installer again. Contact support at support@Swiftposter.com if you have further issues.">
            <![CDATA[Installed OR NETFRAMEWORK40FUL]]>
        </Condition>

However, It always seems to result in false because it keeps stopping me even thou I have the full .NET framework installed (not just the client).

What does this happen?

Answer 1

NETFRAMEWORK40FUL needs to have double L in FULL :)

Answer 2

Here is a list of .net versions :-)

http://wix.sourceforge.net/manual-wix3/wixnetfxextension.htm