Error when creating Worker account on Server

It is related to this topic:

We would like to create a Space/Worker for each person that creates scheduled Tasks. This way the Server will be able to access files on our network drives using the permissions of the Worker.

As the Worker requires the user to enter their network username and password I do not want to be doing this for them. Our short-term solution was to elevate the user to an admin, let them enter their credentials and then return them to a standard user.

We're very open to any other suggestions on how to provide Server with access to network drives.