AppAttach is a technique that uses “application layering” methods to quickly mount and publish MSIX applications in non-persistent (pooled) VDI scenarios and shared operating systems like RDS and Multi-user Windows 10.
MSIX AppAttach is the Microsoft-branded feature for Azure Virtual Desktops that uses this technique to deploy applications to AVD sessions. Other vendors with application management features also use this …

TMEditX is the licensed and more capable tool for fixing up MSIX packages since it doesn’t have to depend on the Microsoft MSIX Packaging Tool to create the final package.
TMEditX is the licensed and more capable tool for fixing up MSIX packages since it doesn’t have to depend on the Microsoft MSIX Packaging Tool to create the final package.
PsfTooling is the free tool to work in conjunction with the Microsoft MSIX Packaging Tool.