Communication over the Serialport (COM1) in Delphi 2...

Can anyone help me with the new communicationconcept under WIN32
I've wrote a 16-Bit-DLL in Delphi to communicate with a device over the
serial interface.
But now I have to port it on WIN32 and Delphi2?

But the command opencomm, fluscomm, readcomm, writecomm, getcommerror-
commands are gone....

Please help me!

Thanks in advance...

Michael Haegele