>From src\setup\Msi\Product.wxs I think you can use these:

                <RegistryKey Root="HKLM"
Key="$(var.WixKeyRoot)\$(var.WixMajorMinor)"
Action="createAndRemoveOnUninstall">
                    <RegistryValue Name="InstallRoot" Value="[BinDir]"
Type="string" KeyPath="yes"/>
                    <RegistryValue Name="ProductVersion"
Value="[ProductVersion]" Type="string" />
                </RegistryKey>

On Sun, Dec 5, 2010 at 7:22 AM, Sean Farrow <sean.far...@seanfarrow.co.uk>wrote:

> Hi:
> Is there a way from the registry, to determine what version of the wix
> toolset is installed? There is a sub-key, but I'm using the
> msbuild.community.tasks, and need to determine the currently installed
> version within an msbuild project.
> Any help appreciated.
> Cheers
> Sean.
>
>
> ------------------------------------------------------------------------------
> What happens now with your Lotus Notes apps - do you make another costly
> upgrade, or settle for being marooned without product support? Time to move
> off Lotus Notes and onto the cloud with Force.com, apps are easier to
> build,
> use, and manage than apps on traditional platforms. Sign up for the Lotus
> Notes Migration Kit to learn more. http://p.sf.net/sfu/salesforce-d2d
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> https://lists.sourceforge.net/lists/listinfo/wix-users
>
>


-- 
virtually, Rob Mensching - http://RobMensching.com LLC
------------------------------------------------------------------------------
What happens now with your Lotus Notes apps - do you make another costly 
upgrade, or settle for being marooned without product support? Time to move
off Lotus Notes and onto the cloud with Force.com, apps are easier to build,
use, and manage than apps on traditional platforms. Sign up for the Lotus 
Notes Migration Kit to learn more. http://p.sf.net/sfu/salesforce-d2d
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