How To Get Active Directory Users and Groups Using SQL Server Integration Services SSIS 2005

We have a requirement to implement security in our data warehouse to limit what data a user can see on a report. As an initial step we have created tables for users and roles; we also have a user role table where we specify the role(s) that a user is assigned. We would like to update the user, role, and user role tables automatically from Active Directory. Ideally we'd like an SSIS package that we could schedule and/or run on demand to take care of the update. Can you provide an example of how to do this?

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