Whats this Program?

Hi, went to run system restore on 8.1and it says that AppNHost 1.0.5.1 1.0.5.1 will be removed. As I didn't know I installed this I was wondering what is was and if its needed. Tried to google this but found nothing.
Thanks

Did you have Native Host for Apps installed?

Not something that I have installed. Dont know if it comes standard with 8.1 though.

Edit
Have now found that it is on the system. Where it came from not sure.