Albrecht,
Versions 1 to 7 work well with the windows version. In multifrac_8 I added some addtitional code and variables which were needed for the reset commands which handle the transitions between the participating programs. They are resposible for the lack of chaotic portions and supply joint centers in images done with the latest edition. Versions 8 to 10 produce a "Buffer Overrun" as soon as they are loaded and Fractwin crashes instantly. Therefore only users running clean dos can load multifractal, only a few are left. I run multifractal also in the DOS Shell but I need a modified XP Version without net services.
With my current (7 year old) laptop, I can run your formula using Fractint in a command prompt under XP (a window, not shelling to DOS). The ability to run Fractint like this is dependent upon how well the Windows drivers are integrated with the hardware. I've had some computers not work above 320x200 resolution.
I´m sorry to say, that Richard refuses to increase the internal buffer, possibly only 1 line in the source code "STACKSIZE 7684 ; was 7172" and then recompile it. My bugreport is dated Aril 19, 2011 and when I sent a reminder was told to issue a new one, that´s all. The source code is available from http://iteratedynamics.codeplex.com. Can anybody help, maybe Jonathan ?
Sorry, no I can't. I don't have the C/C++ compiler that Rich uses. Even if he were to recompile his source for you, you may find that the images are not exactly the same as with the DOS version because of the differences between the C formula parser and the Assembly formula parser. Jonathan