To add to Rob's extremely terse answer ;) the IIS custom actions use the IP
address/port/Host header tuple to discover the internal website ID for the
site. Unfortunately there's no special place to store in the metabase that
the website/virtual directory was installed by WiX - not even a field that
we can repurpose, because all the fields accessible through the metabase API
are editable in the UI and can therefore be broken by the user.
Windows Installer does not persist values that properties acquire during
installation. The only thing it remembers is the key path of every component
that's installed, and I'm not sure that it sets the directory properties to
match. Any property whose value can be changed which you rely on during
maintenance or uninstall must be persisted somehow by you and reloaded
appropriately.
That said, I think WiX is going to have to bite the bullet here and actually
record the site ID in the registry somewhere. I would propose HKLM/HKCU
(depending on value of ALLUSERS)\Software\Microsoft\Windows Installer
XML\Properties\{component GUID} as a suitable location. We might want to
record the product code as well in case the same website component is
installed to different locations by different products. While it would be
nice to use the Registry table to do this, I fear it would cause problems
with multiple definitions of components (assuming you added the new value to
the same component that contained the website).
I realise this goes against the WiX philosophy of only installing exactly
what the source says - it's remarkably clean in that respect - but right now
the IIS custom actions seem very fragile.
--
Mike Dimmick
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rob Mensching
Sent: 21 December 2007 11:10
To: Meyrignac, Jean-Charles
Cc: [email protected]
Subject: Re: [WiX-users] Uninstall a Website
What is the value for your PORT property during uninstall?
Meyrignac, Jean-Charles wrote:
>
> I have a weird bug while uninstalling a website on Windows XP, using
> the MSI installer: when the application is uninstalled, *IIS is
> completely* *broken*.
>
> Here is the part installing my web site:
>
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