What is Microsoft XPS Document Writer that appeared after installing X5?

After installing CDGSX5 I have a weird folder on my data drive, as you can see below. 

Turns out it contains files for Microsoft XPS Document Writer.

What added it?  Was it the corel installer? Was it the .Net update? or maybe 1 of the 4 patches I had to get for the new .Net? Anyone know?

Whatever put that folder there, the root of my E drive is not a good place for it.