I could import the OCX in Delphi and I found the followind interface :
function ProcessTransaction(const XMLCommand: WideString; ProcessControl: Smallint;
const ClientServerPassword: WideString;
const UserTraceData: WideString): WideString;
function ServerIPConfig(const HostList: WideString; ProcessControl: Smallint): WideString;
function PingStoredServerList(const IpPort: WideString; ProcessControl: Smallint): WideString;
procedure CancelRequest;
function GetIPAddressFromHostName(const HostName: WideString; ProcessControl: Smallint): WideString;
function PingServer(const IpAddress: WideString; const IpPort: WideString;
ProcessControl: Smallint): WideString;
function SetConnectTimeout(Timeout: Smallint): Smallint;
function SetResponseTimeout(Timeout: Smallint): Smallint;
function ProcessCanadianTransaction(const XMLCommand: WideString; ProcessControl: Smallint;
const ClientServerPassword: WideString;
const UserTraceData: WideString): WideString;
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so you want to call it from Borland C.
are you talking about the C++ builder or the old Borland C for MS-DOS ?