From 
Beam DX is a small freely distributable program from Gabriel F6DQM for quickly determining the azimuth or automatic rotation of the antenna to the selected location. It supports the following types of rotator interfaces: PourSat, FODTrack, EA4TX, GS232 and EasyComm. I haven't read anywhere about the PC requirements, given the simplicity it's likely to work on a 486 with W95 and up.
Installation consists of extracting nine files from a ZIP file. You will lose about 570 kB of disk space. At the first launch, the initialization window starts, in which you define your own parameters: locator QTH and the type of interface used. In the current version, Beam DX can communicate with you in French and English.
Controlling the program is very simple and intuitive. In the left part of the screen, the place where you want to turn the antenna is entered. You can Enter a locator, geographical coordinates (in decadal form), or select DXCC country from the list. In addition, the user has the opportunity to create three custom lists. You can define in them, for example, your friends on VHF, districts, etc. However, their creation and modification is not possible directly from the program, it is necessary to use an external editor.
On the right side of the screen is an image of the virtual rotator panel, azimuth a QRB . The distance can be displayed in kilometers or miles. Below the rotator panel is the LP button, pressing which displays azimuth and distance data for a long-haul connection. Below them are three large buttons that control the connected rotator - GO, AUTO and STOP.
You can download the Beam DX program at CQ .sk.