Is it possible to unpack files created with linux dd tool on Windows? I have tried that tool http://www.chrysocome.net/dd, but it crashes under Windows 7. Any ideas?
dd isn't a compression format, its a image creation application that saves to an uncompressed image format. One does not unpack it You can write it to a drive with dd, or mount it - on linux I'd use kpartx and on windows, something like osfmount or lmdisk .
If you can mount it, you can probably simply image it over to a blank disk, or work on it directly
Finally I have found a tool which allows to mount *.dd files as Windows virtual drives: http://www.osforensics.com/tools/mount-disk-images.html That is all I needed.