skydrive explorer risk

There's an application called skydrive explorer

 

http://skydriveexplorer.com/ 

 

which provide easy access to Microsoft skydrive.  Norton insight tells me hundreds of Norton users are using skydrive explorer.

 

The product looks suspicious to me, not just because it's free.

I emailed skydrive support asking some questions and got told to read their privacy policy so I replied repeating my questions about who they were and why skydrive explorer was free and got no response.

 

They appear to be based in eastern europe and use avangate for taking donations.

 

What reasonable company would make a product like this and refuse to provide information about themselves? 

 

Is there any way to find out who they are?