Sunday, July 4, 2010

I am trying to get an old version of SuperMorse DOS software ...

Q Chet, KD4IIO, asks, “I am trying to get an old version of SuperMorse DOS software to run under Windows 98, but nothing seems to work. Can you help?”

A I have heard that the interrupt handling for DOS applications has changed drastically from Windows 95 to 98. The net effect apparently is that any DOS software that tries to write directly to the hardware routines (which Super Morse does to achieve perfect timing) will not work properly under Windows 98.

NuMorse is a program that will run under Windows 98 (it is a true Windows application). You can find it on the Web at http://www.btinternet.com/~tony.lacy/. There is also a DOS program called SmartCW that does run properly in a DOS window under Windows 98 (this one doesn’t write directly to the PC hardware). It is available at http://www.qsl.net/aa1do/smartcw.htm.

From QST November 1999