The WINTRUST_PROVIDER_CLIENT_SERVICES structure contains pointers to a set of functions implemented by a trust provider to be called by WinTrust. The trust provider’s WinTrustProviderClientInitialize function passes WinTrust a pointer to this dispatch table.
typedef struct _WINTRUST_PROVIDER_CLIENT_SERVICES
{
LPWINTRUST_PROVIDER_CLIENT_UNLOAD Unload;
LPWINTRUST_PROVIDER_VERIFY_TRUST VerifyTrust;
LPWINTRUST_PROVIDER_SUBMIT_CERTIFICATE SubmitCertificate;
} WINTRUST_PROVIDER_CLIENT_SERVICES, *LPWINTRUST_PROVIDER_CLIENT_SERVICES;
WINTRUST_PROVIDER_CLIENT_INFO, WinTrustProviderClientInitialize, WinTrustProviderClientUnload, WinTrustProviderSubmitCertificate, WinTrustProviderVerifyTrust