AppxInstaller | Tools for installing Uwp apps outside the windows store

AppxInstaller is a C# library. AppxInstaller has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

False. No registration or approval of developers is required for developing uwp apps. When publishing to the windows store, developers must register with microsoft, but even then there is no approval process of the developer. False. An app that is not published to the store is signed locally using the signtool.exe utility from the windows sdk. Signing is done via a standard x509 certificate that can also be created locally with the makecert utility included in the Windows Sdk. False. Prior to the windows 10 november update, the default setting in windows was to only install uwp apps from the store. Since then the default is now to allow other apps by default. Even so however, this setting is just a registry key and can be set by any app with appropriate privileges without any prompts. The standalone msi and appx installer in this repo sets these keys transparently from the user. When trusting an untrusted certificate, a uac prompt is required but this is not related to the universal windows platform. False. The standalone installer uses standard msi functionality and the Wix toolkit using standard components. No custom code is required for the actual package installation. In powershell the [Add-AppxPackage] dn448376.aspx) cmdlet is used and from code, the Package manager api can be used. Mostly false. Some Uwp apis are not available for non uwp apps, mostly relating to the store, the app model itself (like sandboxed storage) and ads, but some other significant apis are not available, like the xaml ui stack. Prior to windows 10, This was true for the most part. However with windows 10 a significant number of win32 apis was made available for uwp apps. Yes and no. Uwp apps install into a protected folder that cannot be modified by users. The platform also hash every file in the app using the signature cert and validates them agasint this hash. This means that the files that are contained in the appx cannot be modified without resigning the app. However, Apps are free to read from the users documents folder as well as custom files. In other words, mods have to be explicitly supported by the application.