It really depends on what your requirements are.  Of course all portal connections will use the same credentials for Laserfiche, so auditing within the repository won't see differences between users.

"User registration" sounds like you will be authenticating users outside of public portal.  In that case, that system should be able to provide information about when users accessed the system.  Do you have such a system in mind, or is this more hypothetical?

We are looking at the feasibility of tracking user activity from a port accessible outside the city network.  We understand that for the WebLink public portal, all users would be essentially, the same user.  This would mean audit trail would only show activity for a combination of all users accessing WebLink through the public portal.

Manually setting up separate read only accounts through some sort of registration process is not desirable.  We were wondering if anyone had used software that would facilitate creating an account on the web side and interface to WebLink by automatically creating a read only account.  A table would be kept that would correlate the user to the WebLink account.  In this way, audit trail could be used if needed to track activity of an individual user.

We understand this is really not the intended use for the public portal but wondered if this has been done by anyone else.