public void MssUser_Create(string ssUsername, string ssPassword, string ssPath, string ssNewUsername, string ssNewPassword, string ssUserDescription, string ssGroup, string ssMail)
{
    DirectoryEntry AD = null;
    DirectoryEntry NewUser = null;
    DirectoryEntry group = null;

    try
    {

        // if not valid it will raise an exception
        AD = getValidDirectoryEntry(NormalizeLDAPPath(ssPath), ssUsername, ssPassword);
        NewUser = AD.Children.Add("CN=" + ssNewUsername, "user");

protected DirectoryEntry getValidDirectoryEntry(string ssPath,
    string ssUsername, string ssPassword)
{
    DirectoryEntry e = null;

    try
    {
        e = new DirectoryEntry(ssPath, ssUsername, ssPassword);

        try
        {
            if (e.Name == "") throw new Exception();
        }
        catch (Exception)
        {
            throw new Exception("Could not find usable entry in path");
        }
    }
    finally
    {
        if (e != null)
        {
            e.Close();
            e.Dispose();
        }
    }

    return e;
}