public class CertificationHelper { public static bool importPFX(string certPath, string certPass) { // Create a collection object and populate it using the PFX file X509Certificate2Collection collection = new X509Certificate2Collection(); try { collection.Import(certPath, certPass, X509KeyStorageFlags.PersistKeySet); foreach (X509Certificate2 cert in collection) { X509Store store = new X509Store(); store.Open(OpenFlags.MaxAllowed); store.Add(cert); store.Close(); // Import the certificate into an X509Store object } } catch (Exception e) { //throw(e); return false; } return true; } public static bool importCER(string cerFileName) { try { X509Certificate2 certificate = new X509Certificate2(cerFileName); X509Store store = new X509Store(StoreName.TrustedPublisher, StoreLocation.LocalMachine); store.Open(OpenFlags.ReadWrite); store.Add(certificate); store.Close(); } catch { return false; } return true; } }

　　具体使用的定名空间已经忘了，，可以本身去找找。