On Windows Server Core, MSIX package registration/activation fails because the MSIX activation stack depends on the AppInfo service, which in turn pulls in UAC — a component not present on Server Core. This blocks installing/running the Store-packaged PowerShell 7 on Server Core editions.

Fix direction: split AppInfo into an MSIX-activation piece and a separate desktop-only (UAC-dependent) piece. Not yet fully scoped.

Tracked internally; targeting resolution by 27H1/early 27H2.