Building a COM dll that can respond to Serial port events

[REWT]

Hello.
I need to be able to write a COM enabled DLL that will be able to respond to serial port events such as receiving a datastream and sending a data stream. It can be a component that can be dropped on a form ( which actually would be a nice implementation ) with a few properties set, so long as it can be dropped in any COM compliant application, specifically Delphi. I do not know where to begin or find information on this particular issue. Any help would be appreciated. Thanks in advance.

REWT

 

[REWT]

Update. It has to be a DLL. It cannot be a control that is dropped on the form. But it still needs to be able to responds to serial port events within the DLL. Thanks.