[HomeBrew] Station Control via PC Serial Port

[Deon Erwin]

A handicapped Ham sucessfully controls his radio with his PC, but has the
following problems:

1.  He is physically unable to operate switches and other station equipment.
A small program running in the background in Win 95/98 to switch relays and
transistors via the serial port, will be ideal to select antennas and switch
equipment.

2..  He also requires a program to control his antenna rotator.  Perhaps via
a serial port too.

Can anyone direct me to the solutions?

Thanks
Deon ZR1DQ