封装的一个ActiveX组件，里面使用的CAPI，有使用飞天诚信USBKEY中证书进行签名的过程，函数调用参看MSDN上说明。 -An ActiveX component package, which uses the CAPI, are used to FEITIAN USBKEY in the process, see MSDN on function call instructions.

CAPICOM is a discontinued ActiveX control created by Microsoft to help expose a select set of Microsoft Cryptographic Application Programming Interface (CryptoAPI) functions through Microsoft Component Object Model (COM). It was intended to enable ev