Export All Certificates to .cer Files

Demonstrates how to export all certificates from a registry-based certificate store to .cer files where each filename is the serial number.

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Chilkat.CreateCS ccs = new Chilkat.CreateCS();
ccs.ReadOnly = true;

//  Open the current-user certificate store:
Chilkat.CertStore cs = null;
cs = ccs.OpenCurrentUserStore();

if (!(cs == null )) {

    Chilkat.Cert cert = null;
    int numCerts;
    numCerts = cs.NumCertificates;
    int i;
    //  Print the distinguished name of each certificate
    for (i = 0; i <= numCerts - 1; i++) {
        cert = cs.GetCertificate(i);

        string filename;
        filename = "certs/" + cert.SerialNumber + ".cer";

        cert.ExportCertDerFile(filename);

    }

}
else {
    MessageBox.Show(ccs.LastErrorText);
}