Is there a way to run the Microsoft browser VMs on VirtualBox?

Question

I do a lot of web development on Linux and Mac, and I'm also a fan of VirtualBox.

Microsoft has available for download various browser images for testing, but they require VirtualPC to run:

Internet Explorer Application Compatibility VPC Images

Is there a way to get these images running on VirtualBox through some conversion process, or making an image of the virtual disk or something? What would be the process involved? I run VirtualBox 4.1 if that matters.

Answer 1

Gave this a shot and it turns out no conversion is necessary.

VirtualPC will boot off the .VHD files just fine. I only tried the Windows XP IE6 image since that was the smallest to download, but I would assume the others are the same.