.NET (Core and Framework)

Dim ps As New System.Diagnostics.Process
           ps.StartInfo.UseShellExecute = False
           ps.StartInfo.Domain = Domain
           ps.StartInfo.UserName = UserName

           Dim pword As New System.Security.SecureString()
           For Each c As Char In Password
               pword.AppendChar(c)
           Next
           ps.StartInfo.Password = pword
           ps.StartInfo.LoadUserProfile = False


           'This Works:
           ps.StartInfo.WorkingDirectory = ApplicationWorkingDir
           ps.StartInfo.FileName = "cmd.exe"

           'Win2012 run as admin
            ps.StartInfo.Verb = "runas"


           If BatchSize = String.Empty Then
               ps.StartInfo.Arguments = "/c  bcp " + DbTable + " in " + SourceFile + " -m " + MaxErrors + " -f " & FMTFile & " -e " & ErrorFile & " -o " & LogFile & " -S " & ServerName & " -T "
           Else
               ps.StartInfo.Arguments = "/c bcp " + DbTable + " in " + SourceFile + " -m " + MaxErrors + " -f " & FMTFile & " -b" & BatchSize & " -e " & ErrorFile & " -o " & LogFile & " -S " & ServerName & " -T"
           End If

           ps.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
           ps.Start()

           ps.WaitForExit()