Serving file with the same url but in network drive

Hello All,
I have a website and i am serving some html files on the home folder of that website urladress /myfile.html

mywebsite.com is under c:\MyWebsite folder of the local computer and myfile.html is under that folder.

Now I am having some problems on disk space. I am going to use a mapped network drive K:\ which is on another computer in the same network.

My question is, I still want same file to be served with urladress /myfile.html, but this time this file will be on K:\ drive and will be deleted from C:\MyWebsite folder.
It is very important that i need to access it via urladress /myfile.html. Do you think this is possible? If so how?

Your help is highly appreciated.
Kind Regards

I cant use any alias like urladdress/data/myfile.html because I have traffic from google and can not change the url address of my files

If you map the drive it will appear as local to your computer; though it's really located on another machine. That should work for you shouldn't it? You won't have to adjust the address at all.