"Mail file" path location

I just started looking into Notes development and have a small challenge to figure out. I support some 2000 notes users and I keep on running into the same scenario over and over again. Some users require to work offline and also sync (with their PDA) to the local replica. The product requires that the "Mail file" field on the Island location be set to the path where the local replica is found. I'll like to have a script/agent or some other way to automate the process so that it's easy enough that I can send it to my users and they can run it themselves.

You could create a button in an email message that uses LotusScript to create a location document (or modify an existing one). Then you could instruct the users on how to use the new location document. You can use the location form and the existing "Canned" location documents to determine which fields are required and used by Notes. I have done this many times in the past.