Object instantiation using Reflection works in VB.NET but not C#

I'm trying to instantiate an object from a dll without referencing it. I can do it using Reflection in VB.NET but can't figure out how to do it in C#.

In VB.NET:

Public Class Form1

Dim bytes() As Byte = System.IO.File.ReadAllBytes("\\path\directory\file.dll")
Dim assmb As System.Reflection.Assembly = System.Reflection.Assembly.Load(bytes)
Dim myDllClass As Object = assmb.CreateInstance("myNamespace.myClass")

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    Dim conStr As String = myDllClass.publicConString
    Dim dt As DataTable = myDllClass.MethodReturnsDatatable("select * from Part", conStr)
    DataGridView1.DataSource = dt

End Sub

In C#:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    static byte[] bytes = System.IO.File.ReadAllBytes(@"\\path\directory\file.dll");
    static System.Reflection.Assembly assmb = System.Reflection.Assembly.Load(bytes);
    object myDllClass = assmb.CreateInstance("myNamespace.myClass");

    private void Form1_Load(object sender, EventArgs e)
    {
        string conStr = myDllClass.publicConString;
        DataTable dt = myDllClass.MethodReturnsDatatable("select * from Part", conStr);
        dataGridView1.DataSource = dt;
    }                
}

I get these two errors:

Error 1 'object' does not contain a definition for 'publicConString' and no extension method 'publicConString' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?) C:\Users\Username\Desktop\C#\FormTest\FormTest\Form1.cs 29 34 FormTest

Error 2 'object' does not contain a definition for 'MethodReturnsDatatable' and no extension method 'MethodReturnsDatatable' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?) C:\Users\Username\Desktop\C#\FormTest\FormTest\Form1.cs 30 33 FormTest

Any insight?

Thanks in advance.