1) Original disk was from slackware 12, filesystem EXT2,
Therefore I install driver Ext2 File System Driver for Windows
Which i used, for mount to windows.
2) After mount EXT2 disk to windows, I use migration tool Disk2vhd from
WEBpage : http://technet.microsoft.com/en-us/sysinternals/bb545046
This tool allow convert disk to vhd virtual disk, which easy mount on to VirtualBoX.