C# Constants:

public static class Crypt32
{
    public const int X509_ASN_ENCODING   = 0x00000001;
    public const int PKCS_7_ASN_ENCODING = 0x00010000;

    // for CertStrToName
    public const int CERT_SIMPLE_NAME_STR = 1;
    public const int CERT_OID_NAME_STR = 2;
    public const int CERT_X500_NAME_STR = 3;
}

VB Constants:

    ' for CertStrToName
    Public Const X509_ASN_ENCODING As Integer = &H1
    Public Const PKCS_7_ASN_ENCODING As Integer = &H10000
    Public Const CERT_SIMPLE_NAME_STR As Integer = 1
    Public Const CERT_OID_NAME_STR As Integer = 2
    Public Const CERT_X500_NAME_STR As Integer = 3

Notes:

None.