<uap3:AppUriHandler
desktop2:Parameters = 'An optional string format of parameters (for example, `/L %1`).'
uap7:Name = 'A string with a value between 1 and 32767 characters in length with a non-whitespace character at its beginning and end.' >
<!-- Child elements -->
uap3:Host{0,1000}
uap5:Host{0,1000}
</uap3:AppUriHandler>