public SmimeResult Decrypt(
	MailMessage message,
	CertificateStore[] stores
)

Public Function Decrypt ( 
	message As MailMessage,
	stores As CertificateStore()
) As SmimeResult

// To use the code below, import these namespaces at the top of your code
using System;
using MailBee;
using MailBee.Mime;
using MailBee.Security;

// The actual code (put it into a method of your class)

// Load the message from file.
MailMessage msg = new MailMessage();
msg.LoadMessage(@"C:\Temp\encrypted_only.eml");

Smime objSmime = new Smime();

try
{
    CertificateStore[] stores = new CertificateStore[1];
    stores[0] = new CertificateStore(CertificateStore.Personal, CertStoreType.System, null);

    // Decrypt the message.
    SmimeResult sResult = objSmime.Decrypt(msg, stores);

    // Display the content of the message.
    if (sResult.DecryptedMessage != null)
    {
        Console.WriteLine(sResult.DecryptedMessage.BodyPlainText);
    }
    if (sResult.DecryptionCertificate != null)
    {
        Console.WriteLine(sResult.DecryptionCertificate.Subject);
    }
}
catch (MailBeeException ex)
{
    Console.WriteLine(ex.Message);
}

' To use the code below, import these namespaces at the top of your code
Imports MailBee
Imports MailBee.Mime
Imports MailBee.Security

' The actual code (put it into a method of your class)

' Load the message from file.
Dim msg As MailMessage = New MailMessage
msg.LoadMessage("C:\Temp\encrypted_only.eml")

Dim objSmime As Smime = New Smime

Try
    Dim stores(0) As CertificateStore
    stores(0) = New CertificateStore(CertificateStore.Personal, CertStoreType.System, Nothing)

    ' Decrypt the message.
    Dim sResult As SmimeResult = objSmime.Decrypt(msg, stores)

    ' Display the content of the message.
    If (Not IsNothing(sResult.DecryptedMessage)) Then
        Console.WriteLine(sResult.DecryptedMessage.BodyPlainText)
    End If
    If (Not IsNothing(sResult.DecryptionCertificate)) Then
        Console.WriteLine(sResult.DecryptionCertificate.Subject)
    End If
Catch ex As MailBeeException
    Console.WriteLine(ex.Message)
End Try