I set up a mapped share drive Y: to my IIS server, then pointed IIS to log
web activity there. However, it keeps logging in the original location and
refuses to use drive Y.

The user set for drive Y is apache on the Linux server, and after I mapped
the drive I'm able to create/edit/delete files/folders while logged in as
administrator. What is the problem here? Is there a specific user IIS
requires in order for the log files to work?