Use the X500DistinguishedName class. : X500DistinguishedName « Security « VB.Net Tutorial

1. VB.Net Tutorial
2. Security
3. X500DistinguishedName

Imports System
Imports System.Security.Cryptography
Imports System.Security.Permissions
Imports System.IO
Imports System.Security.Cryptography.X509Certificates

Class MainClass
   Shared Sub Main()
     Dim store As New X509Store("MY", StoreLocation.CurrentUser)
     store.Open((OpenFlags.ReadOnly Or OpenFlags.OpenExistingOnly))
     Dim collection As X509Certificate2Collection = CType(store.Certificates, X509Certificate2Collection)
     Dim fcollection As X509Certificate2Collection = CType(collection.Find(X509FindType.FindByTimeValid, DateTime.Now, False), X509Certificate2Collection)
     Dim scollection As X509Certificate2Collection = X509Certificate2UI.SelectFromCollection(fcollection, "Test Certificate Select", "Select a certificate from the following list to get information on that certificate", X509SelectionFlag.MultiSelection)
     
     Console.WriteLine( "Number of certificates: " & scollection.Count)
     
     Dim x509 As X509Certificate2
     For Each x509 In  scollection
        Dim dname As New X500DistinguishedName(x509.SubjectName)
        Console.WriteLine("X500DistinguishedName: " & dname.Name)
         x509.Reset()
     Next x509
     store.Close()
   End Sub
End Class