StackOverflow2013

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POAutomatic updating and upgrade management for Windows Installer XML (WiX)
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copied!<p>I have been using InstallShield LE in Visual Studio 2010, but it is heavily limited and sometimes buggy. I looked at paid InstallShield versions, but these also have too many limitations for that price tag.</p> <p>So I decided to switch to WiX. I have had some experience with it some years ago. It was pretty easy to build a simple installer using SharpDevelop with WiX tools.</p> <p>Now I am trying to collect solutions and tools for WiX. Basically, I need to get the following functionality (requested by my client):</p> <ul> <li><p>when I launch the installer, it should check a text file on the server and see if a newer version is available. If it's the case, then the installer should be able to download the updated installer package and launch it (are there any downloader utilities in WiX?)</p></li> <li><p>solving dependencies. Major dependency of my app is .NET 4 (which itself depends on Windows Installer 3). The installer should offer the user to download and install them automatically </p></li> <li><p>logging the installation process, also collecting the log file of the dependencies' installation process. I don't want the user to hunt various .log files in case .NET4 or WindowsInstaller3 installation fails. All the information should be collected in one place and if something fails, I should show the user a custom popup dialog with an option to save the complete install log file and send it to me</p></li> <li><p>installer should be able to detect if there is a newer version of my app already installed, and show a meaningful customized error message before it exits</p></li> <li><p>installer should be able to detect if there is an older version of my app already installed. and offer the user to exit installation or uninstall the previous version and install the new version. BTW, there are no minor component upgrades planned, I prefer to reinstall everything fresh (I guess, this is a major upgrade in the terms of WindowsInstaller). Installshield LE failed on me for this, it just showed an error box with the message about another product, but did not offer to uninstall it</p></li> <li><p>in case of an upgrade, installer should be able to detect if some of application components are in use (running application processes) and show a custom error message and not just some cryptic "Installation failed"</p></li> </ul> <p>I have read that it may be a bit painful to manage upgrades even if I keep my UpgradeCode intact, because this code is stored in the Windows Registry in a compressed way and also if the user renames the downloaded file, it might get detected as a completely new product by WindowsInstaller ... or maybe this is only the case with WindowsInstaller .msi files and WiX has some trick to avoid this issue?</p> <p>About update downloading - I need this functionality also in my application itself. I am not sure how to implement it efficiently, so I can reuse the same update downloader code/utility in both WiX installer and in my app.</p> <p><strong>Is it possible to satisfy all these requirements using currently existing WiX tools, or maybe I'll need to code some components from scratch?</strong></p>

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