Auto-Install PFX within Windows Service

Demonstrates how to load a PFX from a Windows Service so that the private key is available for signing and decrypting. The certificate is loaded into the Local Machine Certificate Store once. After that, it should always be available.

Download Chilkat .NET for 4.0 Framework

Download Chilkat .NET for 64-bit 4.0 Framework (x64)

Download Chilkat .NET for 2.0 / 3.5 Framework

Download Chilkat .NET for 64-bit 2.0 / 3.5 Framework (x64)

Download Chilkat .NET for 1.0 / 1.1 Framework

bool bNeedPfxImport;
bNeedPfxImport = true;

Chilkat.Cert cert = new Chilkat.Cert();
bool hasPrivKey;

//  The LoadByCommonName method searches the registry-based
//  Windows Current User Certificate Store and Local Machine Certificate
//  Store for a certificate whose common name (CN) matches
//  the argument:
bool success;
success = cert.LoadByCommonName("Chilkat Software, Inc.");
if (success == true) {
    hasPrivKey = cert.HasPrivateKey();
    if (hasPrivKey == true) {
        //  Certificate is available and has a private key that is accessible.
        bNeedPfxImport = false;
    }

}

//  Do we need to load the PFX and import?
if (bNeedPfxImport == true) {

    Chilkat.Pfx pfx = new Chilkat.Pfx();

    bool bMachineKeyset;
    bMachineKeyset = true;
    bool bLocalMachineCertStore;
    bLocalMachineCertStore = true;
    bool bExportable;
    bExportable = true;
    bool bUseWarningDialog;
    bUseWarningDialog = false;

    success = pfx.ImportPfxFile("c:/pfxFiles/myPfx.pfx","myPassword",bMachineKeyset,bLocalMachineCertStore,bExportable,bUseWarningDialog);
    if (success == false) {
        //  Failed to import the PFX.

    }
    else {

        //  The certificate(s) within the PFX have been installed.
        //  Now try loading again...
        success = cert.LoadByCommonName("Chilkat Software, Inc.");
        if (success == true) {

            hasPrivKey = cert.HasPrivateKey();
            //  We should have access to the private key now...

        }

    }

}