WinOrbit is a good program for Satellite tracking and it’s free!. The Setup between the WinOrbit and ARSWIN is done via DDE Dialogue.

• At the WinOrbit, you must choose at Misc. Setting Setup ->  Tracking Server:Enable DDE Server

• And at the ARSWIN you must choose at the Satellite Tracking Setup, the WinOrbit option. In this way, both programs will interface via DDE dialogue.