For example, with Notepad++ you can right click a file and you see an "Edit with Notepad++" item. Because these context menus items are added via registry (and the MSIX container-izes it), the OS is...
This idea has been stale for 1.5 years now, and it is essential for adding my compression tool to the Store. See discussion here: https://techcommunity.microsoft.com/t5/msix-packaging-and-tools/msix-packaging-tool-missing-file-type-associations/m-p/1834735#M936
ShakersMSFT : Do you have an update on the timeline for this being supported, if at all?