URL doesn't help...but this just might: http://stackoverflow.com/questions/3938058/changing-the-physical-path-of-an-iis-website-on-a-remote-machine-via-powershell
Or maybe this: https://kabheap.wordpress.com/code-library/powershell/powershell-update-iis-virtual-directory-physical-paths/%5B/url%5D
Gaz
-- Stop your grinnin' and drop your linen...they're everywhere!!!