<uap17:Extension Category = "windows.packageExtensionHost" | "windows.packageExtension"
desktop11:AppLifecycleBehavior = "systemManaged" | "unmanaged"
Executable? = A string between 1 and 256 characters in length that must end with ".exe" and cannot contain these characters: <, >, :, ", |, ?, or *.
EntryPoint? = A string between 1 and 256 characters in length that cannot start or end with a whitespace character.
RuntimeType? = A string between 1 and 255 characters in length that cannot start or end with a period or contain these characters: <, >, :, ", /, \, |, ?, or *.
StartPage? = A string between 1 and 256 characters in length that cannot contain these characters: <, >, :, ", |, ?, or *.
ResourceGroup? = An alphanumeric string between 1 and 255 characters in length. Must begin with an alphabetic character.
uap10:TrustLevel? = "appContainer" | "mediumIL"
uap10:RuntimeBehavior? = "windowsApp" | "packagedClassicApp" | "win32App"
uap10:HostId? = An alphanumeric string between 1 and 255 characters in length. Must begin with an alphabetic character.
uap10:Parameters? = A string between 1 and 32767 characters in length with a non-whitespace character at its beginning and end.
uap11:Id? = A string between 1 and 255 characters in length with a non-whitespace character at its beginning and end.
uap11:Subsystem? = "console" | "windows"
uap11:SupportsMultipleInstances? = Boolean.
uap11:ResourceGroup? = An alphanumeric string between 1 and 255 characters in length. Must begin with an alphabetic character.
uap11:CurrentDirectoryPath? = A string that cannot contain these characters: <, >, |, ?, or *. >
uap11:Parameters? = A string between 1 and 32767 characters in length with a non-whitespace character at its beginning and end.
desktop7:CompatMode? = "classic" | "modern"
desktop7:Scope? = "machine" | "user"
>
<!-- Child elements -->
PackageExtensionHost
PackageExtension
</uap17:Extension>