[wix-users] Checking for Product A before installing Product B

[Jacques Eloff]

Is the component guaranteed to always be in product B? Is it possible that
the component can be shared, e.g. with Product C, so B might not be
installed, but the component might? If that's the case you might consider a
ProductSearch or using something like a registry key if Product B writes
something that identifies itself.

Jacques

On Tue, Apr 23, 2019 at 12:34 PM Swatantra Yadav via wix-users <
wix-users at lists.wixtoolset.org> wrote:

> Hello All,
>
> I have a requirement to install Product B only if Product A is not
> installed. Otherwise Product B installation should error. Does the below
> check look correct? I am checking for existence of a component that would
> be present if Product A is already installed. The check must only run at
> installation and not run on uninstall or update.
>
> Thanks,
> Swat
>
>
>
>
> <Product>
> <Property Id="MyProperty">
>       <ComponentSearch Id="ProductAAlreadyInstalled" Guid="{GUID HERE}"
> Type="directory">
>       </ComponentSearch>
>     </Property>
>     <Condition Message="Please uninstall Product A before installing
> Product B">  <![CDATA[Installed AND NOT MyProperty]]> </Condition>
>
>
> <!-Other things truncated here -->
> </Product>
>
>
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