windows 7 - Online, "Smart" Partition Manager with Full Ext4 Support?

Is there any partition manager for Windows that can manage (resize, move, etc.) ext4 partitions?

Caveats:

• Resize must be smart when resizing from the beginning of the partition.

  
  

  Many partition managers screw this up (I've noticed Acronis Disk Director 10 being an exception), and move the entire partition's data when you resize from the beginning, translating into enormous amounts of time wasted in many cases.




• It must also be able to browse (copy/delete) files on partitions too.

I am specifically NOT asking for:

• Offline-only solutions


• Linux-based solutions

I think Acronis Disk Director 10 fit all of these solutions except that it doesn't have ext4 support. Something similar with ext4 support is just what I need.