1. You may be missing file MSVBVM60.DLL from your Windows operating system. Solution: Download file MSVBVM60.ZIP from this site, uncompress it with PKZIP, and copy it to directory \WINDOWS\SYSTEM in your computer.
2. You may be missing the Bookman font from your Windows operating system. Solution: Download file BOOKOS.ZIP from this site, uncompress it with PKZIP, and install it in your computer using program "Fonts" found under Start Menu->Settings->Control Panels.
If the program runs, but refuses to accept a decimal separator in the input data (point or comma), you may have to change Windows "Regional Settings" to "English (US)." The program "Regional Settings" is under Start Menu->Settings->Control Panels.