Technique to run an event receiver from console app

Question

There's a imported list with 500.000 items and an event receiver attached to it (itemAdded/Updated). I need to run the event receiver on older items meeting specific criteria but I don't want to update the items nor duplicate the code of the event receiver.

I'm thinking of creating a class inside the event receiver and import the .dll to a console app but I can't figure out the steps. The event receiver has not been implemented yet. The console app could be run on the server.

Has anyone done it before and how?

Answer 1

Create a solution that has three projects: a class library containing the functionality, the console app, and the event receiver. The console app and event receiver would each have a reference to the class library project.