Is it possible to organize your Components so that one Feature has most
Components and the other Feature has less Components? A Component can be
installed by two Features.  Maybe I'm misunderstanding.

BTW, deleting files that the Windows Installer thinks should be installed is
a *very bad* design. You'll end up in an immediate "repair" state that has
real potential of creating problems for you all over the place later.

...or maybe I just don't really understand the scenario.

On Thu, Jul 28, 2011 at 7:44 AM, Peter Stein <pst...@instec-corp.com> wrote:

> I'm not attempting to upgrade anything. I'm trying to use this mechanism to
> solve a problem with feature set installation (which I described in another
> email).
>
> Basically my installer users can choose between 2 features in a dialog. The
> problem is that the dialog choice is not available at the time of
> CostFinalize and it doesn't seem possible to re-sequence the UI standard
> actions. So simply modifying ADDLOCAL does not work.
>
> The relationship between these 2 features is that one is a subset of the
> other. So two possible strategies may work: 1. Install the subset and
> possibly add the other files, OR 2. Install the superset and subtract (i.e.
> remove files). When I discovered the post that contained "RemoveFiles" I was
> hopeful that usage of  "Remove" elements might lend itself towards a
> solution based on the 2nd strategy. But based on your email I appear to be
> barking up the wrong tree.
>
> It looks like it will be necessary to resort to a very ugly kludge, namely
> including a helper exe in the installer that will remove the unwanted files.
>
> -----Original Message-----
> From: Wilson, Phil [mailto:phil.wil...@invensys.com]
> Sent: Wednesday, July 27, 2011 7:10 PM
> To: General discussion for Windows Installer XML toolset.
> Subject: Re: [WiX-users] RemoveExistingProducts doesn't work in 3.5
>
> There's a lot of other stuff that needs doing for upgrades to work, and you
> haven't said if you actually have it, such as upgrade specifications in your
> WiX.
>
> I'd look at all your FindRelatedProducts actions in your install to see if
> they report anything about finding older versions of your product.
>
> It's also not obvious that this is a solution to your problem, whatever it
> is. During an upgrade the state of files being installed or removed is about
> whether they have the same component guids or not. In the scenario where
> RemoveExistingProducts after InstallFinalize works, look at it something
> like this as a general flow guide:
>
> Every file in your original install has a guid associated with it.
>
> All the files in your upgrade where you want to replace the old file with
> your new file need the same component guid.
>
> The upgrade install runs. Every file gets replaced, based on file version
> rules where applicable.  Where the component guids are identical the ref
> count on that guid increments from 1 to 2.
>
> At the end the RemoveExistingProducts runs. It will look at each file's
> guid and decrement the ref count. If it goes from 2 to 1 the file will not
> be removed (it's in use by the product you just installed). If the ref count
> on a guid goes down to zero then nothing is using it. So it gets removed.
>
> If you don't want filexyz.exe in the product then just don't put it in your
> upgrade. Once you get the upgrade really working with
> RemoveExistingProducts, if it's not being removed then something else is
> going on (clobbered ref counts, marked permanent etc).
>
> Phil Wilson
>
>
> -----Original Message-----
> From: Peter Stein [mailto:pst...@instec-corp.com]
> Sent: Wednesday, July 27, 2011 4:40 PM
> To: 'WiX-users@lists.sourceforge.net'
> Subject: [WiX-users] RemoveExistingProducts doesn't work in 3.5
>
> I based my code on this:
> http://stackoverflow.com/questions/3287626/wix-installer-remove-files-on-uninstall-but-not-on-upgrade
>
> I saw no complaints about the suggested answer so I assumed it worked. But
> when I adapted to my code it does nothing.
> In product.wxs:
>
> <InstallExecuteSequence>
>      <RemoveExistingProducts
> After='InstallFinalize'>1</RemoveExistingProducts>
> </InstallExecuteSequence>
>
> And in my main installation directory I added:
>
> <Component Id="RemoveFilesComponent"
> Guid="A749202E-E09A-4DED-B205-337B0E7FB736">
>        <RemoveFile Id="R1" On="both" Name="filexyz.exe"/> </Component>
>
> The installer runs and completes without error or warnings, but filexyz.exe
> is not removed. As an experiment I tried "*.*", but that didn't remove
> anything neither.
> The msi.log shows RemoveExistingProducts being invoked, but it doesn't
> remove anything.
>
> What am I missing?
>
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