Delphi DDE/C++

I'm trying to send a DDE RequestData from Delphi(v1) client app to a
BC4.5 server app and I'm having a problem. As soon as I open a link
(OpenLink) in Delphi the XTYP_REQUEST keeps getting called in the C++
callback routine in the server.

Any help would be much appreciated. With thanks.

--John Kimber