.net - Removing files from appdata when uninstalling WiX -

when uninstalling application, i'd configure wix setup remove files added %appdata% folder, after original installation.

but here problem, application can run many users. in application start have function creates files if not exist. want remove files, no matter "user/appdata" are.

a similar question has been asked here: removing files when uninstalling wix

but difference handling multiple users.

synopsis: don't way; leave each user make easy understand , do.

scenario:

1. a user installs version of application.
2. zero or more users run it, , application creates data them individually.
3. a user uninstalls application.

variations:

• instead of uninstalling, user upgrades newer version.
• instead of uninstalling, user downgrades older version.
• some time after user uninstalls application, user installs newer version.
• some time after user uninstalls application, user installs older version.
• some time after user uninstalls application, user installs same version.

considerations:

• would users aware of data , consider own work?
• would users care if data wiped out , recreated? (that effect of other user uninstalling application data being deleted , user re-installing it.)
• can application detect version of data?
• can installer detect version of data?

possible solution:

let each user decide @ time "uninstall" data. (this solution addresses of issues raised above.)

• the application creates "uninstaller" each user runs application.
• the user data uninstaller registered application under user's profile in "add/remove programs" and/or shortcut in user's programs menu.
• the application installer doesn't have data.
• the user data uninstaller simple script/program need unregistered , delete itself, too. 1 way windows installer package silently installed (per-user) application.