this.RichTextBox1.RTF = @"{\rtf1\ansi\ansicpg1252\deff0{\fonttbl{\f0\fnil\fcharset0 MS Sans Serif;}}\viewkind4\uc1\pard\lang1033\f0\fs17 Rich Text\par }";
Me.RichTextBox1.RTF = "{\rtf1\ansi\ansicpg1252\deff0{\fonttbl{\f0\fnil\fcharset0 MS Sans Serif;}}\viewkind4\uc1\pard\lang1033\f0\fs17 Rich Text\par }"