I compiled it under Topologilinux 7.0.1.
I used VirtualBox under Windows 7, but the building process was performed under Linux.
Then, watch this video. We download the VisOpSys source code (0.77 in this case), and just type and enter make. Wait the compilation process to end in arount 5-10 minutes, then we follow the instructions in visopsys-0.77-src/utils/BUILDING.txt to create the disk images and the new source code archive:

First, install VirtualBox and set the RAM to 512 Megabytes, the video memory to 32 Megabytes, the hard disk to 16 Gigabytes and the number of CPU cores to 1:

Now we can install Topologilinux 7.0.1 and leave it running to compile VisOpSys (use startx to enter graphics mode and KDE/GNOME):

Download Topologilinux 7.0.1 and VirtualBox:
http://sourceforge.net/projects/topolog ... x%207.0.1/
http://www.virtualbox.org/wiki/Downloads
The next thing to document is the process to write and install on Floppy, CD-ROM and USB.