List all Shell Application Namespace in Windows

List-ShellNameSpace.ps1

$ShellApp = New-Object -ComObject ShellApp.Application # initialize the COM application object

foreach($i in $(0..100)){ # from 0 to 100. The highest number is just a guess.
    $ShellApp.namespace($i) | Where-Object {$_.Title} | # try the namespace, and return only if there's value in title
    Select-Object `
    @{n="Dec";e={$i}}, ` # Base 10 (Dec) namespace index
    @{n="Hex";e={"0x" + ('{0:X}' -f $i)}}, ` # Base 16 (Hex) namespace index
    Title, `
    @{N="Path";e={$_.Self.Path} } # Folder path
}