Maybe I'm misunderstanding, but shouldn't your uninstaller just delete the persistent store? Some uninstallers have a checkbox option that lets the user control whether or not their data is uninstalled as well, but it's definitely the uninstaller's job to get rid of it if necessary

How to delete application data on install and reinstall
I'm building my new blog on Tumblr, I've already got all my old WordPress posts and migrated them to their new home. The problem is that the Tumblr permalinks are different from the WordPress ones (the post title part), so I want to know how I can manually redirect URLs like:


  http://dreamintech.net/2012/3/post-title-something-test


To:


  http://nathancampos.me/post/1920418430/post-title-here


Is there any way I can do this without having to use regex to insert the post-title part on the new URL, because I want to make this all manually.

PS: I don't care about the time it will take
