In our product, we maintain the component violation and we instruct our users
in such a scenario to run repair on the remaining version if you uninstall from
a side-by-side state. A custom action would also potentially work as you
suggest Kim, if the scenario is important enough to warrant the effort and
risk. You are correct that there are problems regardless of how you handle the
situation. That is just a fact of COM and how it doesn't always play nicely
with Windows Installer in some scenarios (or rather Windows Installer doesn't
play nice with COM :)).
--
Bryan
________________________________________
From: Kim Gybels [kim.gyb...@metris.com]
Sent: Tuesday, May 11, 2010 2:36 AM
To: General discussion for Windows Installer XML toolset.
Subject: Re: [WiX-users] Version independent prog id is removed after
uninstalling current version
This is an interesting problem.
The question is: what behavior would be acceptable?
If it didn't remove the unversioned progid this would also be a problem
because then you would have a progid that points to a component (dll,
ocx, exe, ...)
that got deleted.
Assume we have 3 versions of a product with the following progids:
v1: ProgID.1 -> GUID1
v2: ProgID.2 -> GUID2
v3: ProgID.3 -> GUID3
To what version should the unversioned progid refer?
- the highest installed version
- the lowest installed version
- the last installed version
- the first installed version
The first option seems the most logical to me. So the uninstall should
check the registry
key for other existing versioned progids and set the unversioned progid
accordingly.
We are facing the same issues in our product and we have decided to drop
support for the
unversioned progids.
Best regards,
Kim
--
* *
*Kim Gybels
Software Developer
* kim.gyb...@nikonmetrology.com <mailto:kim.gyb...@nikonmetrology.com>
Tel: +32 16 74 01 00
Fax: +32 16 74 01 03
*Nikon Metrology Europe NV*
Interleuvenlaan 86
3001 Leuven
Belgium
www.nikonmetrology.com <http://www.nikonmetrology.com/>
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