If you are using the IDE you should create a project in the same
directory as the source.
Here is a list of files to put in the project file:
WMSERIAL.C
WCONNECT.C
WNOTIFY.C
WTTY.C
WMODEM.C
WCOM.C
WMSERIAL.RC
Here is a list of options to turn on:
Generate Windows Executable
Large Memory Model
Turn On All Warnings (optional)
Include Debug Info (optional)