ExamGuru IT/.Net Guru : Not executing uninstall custom event when two or more versions of the application are installed on microsoft.public.dotnet.framework.setup

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Not executing uninstall custom event when two or more versions of the application are installed

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This message was discovered on microsoft.public.dotnet.framework.setup.
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Nikolay T via .Net Guru (VIP)

I am developing setup project that installs the entire application (all other projects in the solution). This setup project installs the database, file content of the application and some additional things through inherited System.Configuration.Install.Installer class Install() method that is invoked by Windows Installer during install.
There is also implemented Uninstall() method that is invoked by Windows Installer while application is uninstalled. The setup supports multiple versions of the applicatiion being installed on the same machine (i.e. on one computer may be installed 1.1, 1.2 and 2.1 versions which exists separately and don't update each other during installation).
There is the problem - when I am uninstalling the application and there is a single version currently installed all goes well - my Uninstall() method is invoked by Windows Installer and the application is cleaned up.
However, when there are multiple versions installed (two or more) when either of them is uninstalled for some strange reason the Windows Installer does not invoke the code in Uninstall() method, but smoothly removes the application and it is not seen in Add/Remove programs anymore. The database and files of the application remain, however, because they are removed by the code in Uninstall() method which wasn't invoked.
I don't see any reason Uninstall() method to be invoked only when there is only one version of the application installed on the machine - each version has its own unique ProductCode GUID set in the setup project and uninstallation when there is more than one installed version completes without errors, just as if there was no Uninstall() method which was supposed to be invoked.

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Posted by a user from .Net Guru (http://www.dot-net-guru.com/)

<Id>g1m+voPqA0G6nKcFTM/7ig==</Id>

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Phil Wilson

If you do a command line uninstall when you get the problem, you can create
a log, that might show why your uninstall custom action isn't being called:
msiexec /x {product guid} /l*v somelogfile.log
--
Phil Wilson
[MVP Windows Installer]
Definitive Guide to Windows Installer
http://www.amazon.com/exec/obidos/tg/detail/-/1590592972/104-7044380-4696760

"Nikolay T via .Net Guru" <Click here to reveal e-mail address> wrote in message
news:eTAqg%Click here to reveal e-mail address...
I am developing setup project that installs the entire application (all
other projects in the solution). This setup project installs the database,
file content of the application and some additional things through inherited
System.Configuration.Install.Installer class Install() method that is
invoked by Windows Installer during install.
There is also implemented Uninstall() method that is invoked by Windows
Installer while application is uninstalled. The setup supports multiple
versions of the applicatiion being installed on the same machine (i.e. on
one computer may be installed 1.1, 1.2 and 2.1 versions which exists
separately and don't update each other during installation).
There is the problem - when I am uninstalling the application and there is a
single version currently installed all goes well - my Uninstall() method is
invoked by Windows Installer and the application is cleaned up.
However, when there are multiple versions installed (two or more) when
either of them is uninstalled for some strange reason the Windows Installer
does not invoke the code in Uninstall() method, but smoothly removes the
application and it is not seen in Add/Remove programs anymore. The database
and files of the application remain, however, because they are removed by
the code in Uninstall() method which wasn't invoked.
I don't see any reason Uninstall() method to be invoked only when there is
only one version of the application installed on the machine - each version
has its own unique ProductCode GUID set in the setup project and
uninstallation when there is more than one installed version completes
without errors, just as if there was no Uninstall() method which was
supposed to be invoked.

-----------------------
Posted by a user from .Net Guru (http://www.dot-net-guru.com/)

<Id>g1m+voPqA0G6nKcFTM/7ig==</Id>

Reply to this message...

System.Configuration.Install.Installer

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