I have a solution with serveral class libraries the user can install via my
deployment (setup) project.

The user will need to pick the components they want installed during the msi
setup routine. How can I give them a treeview like Visual Studio setup does
to pick what you want to install?

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Use something other than a Visual Studio setup.

Flippant maybe, but realize that VS setups are not fully-featured authoring
tools for setup projects. The tree view things that you see are individual
features that you can choose at install time and also go to Add/Remove
Programs and modify to add or delete them. Visual Studio setups do not allow
you to groups pieces of your setup into features. The closest you can get
with VS is use a checkboxes dialog and mark files to be installed based on
the checkbox being set.

http://www.installsite.org/pages/en/msi/authoring.htm
--
Phil Wilson
[Microsoft MVP-Windows Installer]
Definitive Guide to Windows Installer
http://apress.com/book/bookDisplay.html?bID=280

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