The Chilkat Email components / libraries are back-end interfaceless components for sending, receiving, and manipulating email.
However, a .eml file is identical to a .mht file in content/format: it is simply a MIME message. You can create an instance of a Microsoft WebBrowser control and
point it to a .mht file to display it, just like displaying an HTML file. If you simply change the file extension from .eml to .mht, you should be able to display the email in a WebBrowser control.