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Windows Internals Seventh Edition Part 1: System architecture, processes, threads, memory management, and more, Seventh Edition by David A. Solomon, Mark E. Russinovich, Alex Ionescu, Pavel Yosifovich

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The AppContainer

We’ve seen the steps required to create processes back in Chapter 3; we’ve also seen some of the extra steps required to create UWP processes. The initiation of creation is performed by the DCOMLaunch service, because UWP packages support a set of protocols, one of which is the Launch protocol. The resulting process gets to run inside an AppContainer. Here are several characteristics of packaged processes running inside an AppContainer:

Image The process token integrity level is set to Low, which automatically restricts access to many objects and limits access to certain APIs or functionality for the process, as discussed earlier ...

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