Can't deobfuscator a file with de4dot

[lookoverthere]

Hi.
I'm using the newest version (1.6.0), and when I try and deobfuscate my file, I get the following message:

Detecting Unknown Obfuscator (path name...)
Ignoring assembly with native code "path name..."

Could someone look @ the dll file and see if they can make any sense of it please?

I have looked @ the dll using Protection ID, and it says:
[CompilerDetect] -> .NET

Any help would be great!
I've attached the file and an image of what de4dot said (I had to be quick with the screen shot as the CMD window quickly disappeared after that message had been displayed)

http://www.mediafire.com/?u9yky9kq9gyy1bj