private void InstallCertification(string certFileName, StoreName storeName, StoreLocation storeLocaion, string password, X509KeyStorageFlags x509KeyStorageFlags) { X509Store store = new X509Store(storeName, storeLocaion); try { bool Exists = false; X509Certificate2 cert = new X509Certificate2(certFileName, TranString.convertToSecureString(password), x509KeyStorageFlags); store.Open(OpenFlags.ReadWrite); foreach (X509Certificate2 storeCert in store.Certificates) { if (storeCert.Thumbprint.Equals(cert.Thumbprint, StringComparison.OrdinalIgnoreCase)) { Exists = true; break; } } if (!Exists) { store.Add(cert); } } catch (Exception) { throw; } finally { store.Close(); } }