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copied!<p>You just need to set ARPSYSTEMCOMPONENT=1 in the Property table of the installer using <a href="http://www.microsoft.com/DownLoads/details.aspx?familyid=6A35AC14-2626-4846-BB51-DDCE49D6FFB6&displaylang=en" rel="noreferrer">Orca</a> (Can't be done directly in Visual Studio from what I know)</p> <p>This is commonly used when a program installs dependencies and you don't want the user to uninstall dependencies by hand, they need to use a specific uninstall script you've provided or something.</p> <p>Personally, I would author the patch as a patch and prevent the patch from being uninstalled. </p> <p>Also I suggest picking up a copy of <a href="http://rads.stackoverflow.com/amzn/click/1590592972" rel="noreferrer">The Definitive Guide to Windows Installer</a> which will give you some explanation on how, why and where you should use tricks such as this. As well as giving you a really good understanding of the windows installer fundementals and help you to design a better installer in the long run. All the examples in the book use Visual Studio + free tools from the <a href="http://www.microsoft.com/DownLoads/details.aspx?familyid=6A35AC14-2626-4846-BB51-DDCE49D6FFB6&displaylang=en" rel="noreferrer">Windows Installer SDK.</a></p> <p><strong>Edit:</strong> The user still has full control to uninstall via MSIEXEC, via a custom uninstall shortcut that you provide, all this does is hide the entry in Add/Remove Programs (ARP)</p> <p><strong>Edit2:</strong> Sample VBS to add the property (if you want to do so as part of an automated build process)</p> <pre><code>Dim installer, database, view Set installer = CreateObject("WindowsInstaller.Installer") Set database = installer.OpenDatabase ("test.msi", 1) Set view = database.OpenView ("INSERT INTO Property(Property.Property, Property.Value) VALUES('ARPSYSTEMCOMPONENT', '1')") view.Execute Set database = Nothing Set installer = Nothing </code></pre>

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