(Windows) What is "gdnc"?

[Lloyd Dupont]

I'm using GNUstep to read/write/access some data in my application.
But the application is an ordinary (.NET) windows Application.

Lately I add support for picture in my document which I stored as a 
NSFileAttachment in NSAttributedString.
When I created the picture (the NSTextAttachement of a NSFileWrapper really) 
a console windows named "C:\GNUstep\System\Tools\gdnc" suddenly appeared.

What is that?