Scheduled agent running under dynamically changing user rights?

Scenario:

Scheduled server based agent(s) should create multi user dependent newsletters.

Each user specific newsletter should content doclinks to different dbs.

The search to get the doclinks should respect user’s ACL, roles and reader fields.

I have read several Julie articles, i.e. “Decoding the new Notes/Domino 6 agent features” by Julie Kadashevich.

But I did not found a way to change agent rights dynamically by an server agent.

Is this in Notes 6 easier to implement than in Notes 5 ?

Or, should I have to implement an unrestricted server agent, which simulates the visibilty of docs to each user ?

Thanks for any help !

c ifo