using System;

using System.Threading;

using System.Globalization; 

public class Program

{

    public static void Main()

    {

        var cultureInfo = new CultureInfo("tr-TR");

        Thread.CurrentThread.CurrentCulture = cultureInfo;

        Thread.CurrentThread.CurrentUICulture = cultureInfo;

        CultureInfo.DefaultThreadCurrentCulture = cultureInfo;

        CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;

        var test = new Uri("https://myhost.net/Publications/te%21st%C3%87.pdf");

        Console.WriteLine(test.AbsolutePath);

    }

}