LONG SProxyConnect(SCARDCONTEXT hContext, LPCSTR szReader, DWORD dwShareMode, DWORD dwPreferredProtocols, LPSCARDHANDLE phCard, LPDWORD pdwActiveProtocol);
LONG SProxyDisconnect(SCARDHANDLE hCard, DWORD dwDisposition);
LONG SProxyEstablishContext(DWORD dwScope, LPCVOID pvReserved1, LPCVOID pvReserved2, LPSCARDCONTEXT phContext);
LONG SProxyListReaders(SCARDCONTEXT hContext, LPCSTR mszGroups, LPSTR mszReaders, LPDWORD pcchReaders);
LONG SProxyTransmit(SCARDHANDLE hCard, LPCSCARD_IO_REQUEST pioSendPci, LPCBYTE pbSendBuffer, DWORD cbSendLength, LPSCARD_IO_REQUEST pioRecvPci, LPBYTE pbRecvBuffer, LPDWORD pcbRecvLength);
LONG SProxyReleaseContext(SCARDCONTEXT hContext);