download, install and start virtualbox
make new vm with enough space to restore everything (see partimage imginfo machine.000, replace machine with backup name)
boot sysrescuecd on vm
dhclient eth0 mount.cifs \\\\10.123.45.3\\void /mnt/windows startx gparted
create default partition table
create new partition of appropriate filesystem type and set boot flag
exit
partimage restore /dev/sda1 /mnt/windows/machine.000
accept 100 dialog boxes
wait