[wix-users] Uninstallation issues

Edwin Castro egcastr at gmail.com
Wed Jan 31 08:37:07 PST 2018

You have at least Products with a component with the same Guid="{

If you can't identify them easily from source then you should be able to
see the component guids in verbose logs for all the appropriate Products.
OR you could look at the MSIs with Orca or InstEdit and simply look for
that guid.

Edwin G. Castro

On Wed, Jan 31, 2018 at 7:34 AM, Joseph L. Casale via wix-users <
wix-users at lists.wixtoolset.org> wrote:

> I have some code generating tooling I use to create packages for several
> in-house application.
> When I install all of them (a normal use case) then uninstall all of them,
> all the registry, file
> and Windows services (if present) are removed, but for some with IIS
> websites, a few packages
> leave the site and pool behind.
> After removing all the packages and manually removing the few orphaned
> sites and pools, then
> installing a single package known to leave its site and pool, when I
> uninstall it everything is
> removed properly.
> Looking at a log for it when installed in parallel with the others, I see
> several lines indicating
> a refusal to remove some components:
> Disallowing uninstallation of component: {B54BA604-7CA9-50F0-87CA-0690231F2C09}
> since another client exists
> When it is installed alone and then removed, all components are removed
> and the log
> entries are obviously not present.
> Reading https://blogs.msdn.microsoft.com/heaths/2009/12/21/about-
> shared-components/ I
> am not certain what to take away, I do not have any shared components as
> all the files and
> registry entries fall under unique parent directories and registry keys
> (c:\Program Files\< Manufacturer> \<app name>
> or HKLM\Software\< Manufacturer> \<app name>), and the sites and pools are
> all discrete.
> In this scenario, what can be a cause of this behavior?
> Thanks,
> jlc
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