Powershell how to convert System.Collections.Generic.Dictionary to PSCustomObject?

Question

I have a System.Collections.Generic.Dictionary that I have obtained by running the code snippet below. How do I convert $Obj to a PSCustomObject?

[void][System.Reflection.Assembly]::LoadWithPartialName("System.Web.Extensions")
$jsonserial= New-Object -TypeName System.Web.Script.Serialization.JavaScriptSerializer
$jsonserial.MaxJsonLength  = 67108864
$Obj = $jsonserial.DeserializeObject($JsonString)

Answer 1

New-Object should work from PS 2.0 onwards:

$custom = new-object PSCustomObject -Property $obj