MacOS 10.9.3 broke Parallels 8, something pertaining to the video. So Parallels worked on the problem and released a fix in Parallels 9. Problem is, Parallels 9 breaks my Windows 3.11 virtual machine. I'm using something known as the "Tseng patch" in conjunction with the native Windows-3 Generic SVGA driver. I saw it described at sierrahelp and discovered that it worked for Parallels. Or it did until Parallels 9 broke it. Well, I don't want to be marooned at 10.9.2 but I can't conveniently run Parallels 8 and also Parallels 9 (each installer removes the other application, aside from which Parallels 9 will want to install its newer tools in XP, Server 2008, Windows 7, MacOS 10.7, 10.8, 10.9 etc...). By the way, there are no Parallels Tools installed in Windows 3.11 VM for me to worry about.
TLDR Version: I want to run or import or convert my Windows 3.11 Parallels 8 VM and use it in VirtualBox.
The Parallels folks told me I could right-click the ".hdd" package and locate the .hds file within it, drag it out, and rename it to AnyName.hdd and then "use existing virtual HDD file" in VirtualBox, select that one and it should work. Well, it lets me select it but then complains that there's no bootable OS anywhere to be found.
VirtualBox documentation says
Version 2 was a hell of a long time ago and the Parallels folks have no idea what tools these would be that would convert my Parallels 8 hard disk file to Parallels 2 format if the above procedure didn't work.Image files of Parallels version 2 (HDD format) are also supported.5 For lack of documentation of the format, newer formats (3 and 4) are not supported. You can however convert such image files to version 2 format using tools provided by Parallels.
NOTE: I can also "mount" the esisting Parallels/Windows 3.11 virtual hard disk in the MacOS environment and drag all files and folders out of it. But for that to be useful I'd need somewhere to drag them TO, some way to get them into a container that VirtualBox will make use of.
Anyone walk me through this?