[C#]
    byte[] AuthorityKeyIdentifier;

[VB.NET]
    Property AuthorityKeyIdentifier As Byte()

[Pascal]
    property AuthorityKeyIdentifier : string;

[VB6]
    Property IElCertificateLookupX.AuthorityKeyIdentifier As Variant

[ActiveX]
    HRESULT _stdcall IElCertificateLookupX.AuthorityKeyIdentifier([in] VARIANT Value );
    HRESULT _stdcall IElCertificateLookupX.AuthorityKeyIdentifier([out, retval] VARIANT * Value );

[DLL]
    not implemented;