3/
An image created with kernsafe can be opened with winimage.
Sure.

But I doubt that it can be properly saved from it.

(a known problem that Winimage has with disk geometry when "exporting with a MBR")
In other words, while IMDISK "skips" the MBR and hidden sectors (BTW @bilou_gateux, newish IMDISK has the capacity to autodetect offsets) and when the contents of the image are modified simply makes the changes leaving untouched MBR and hidden sectors, Winimage "ignores" it, and works with an image MBR and hidden sectors "stripped off": thus once you have made changes to the opened images it offers to either save the image as a partition image (with no MBR and hidden sectors) or to "Export it with a MBR".
In the first case the image cannot be re-mounted properly as a "hard disk" (but of course it works allright with IMDISK) in the second case the MBR code, geometry data and Disk Signature won't be the same as before.


jaclaz