Launch app on startup for all users, but also allow per-user setting (Windows)

Question

I need my application installer set the program to auto-startup for all users. Then each individual user should be able to modify this option without affecting others.

Currently I write to HKLM/../Run with installer, which acomplishes the first task. But then I can't disable autorun for current user, because deleting th HKLM/../Run entry would disable it for everybody.

Is there a way to do that, without using shortcuts in Autostart folder?

Answer 1

start it for all users always but check a configuration variable in HKLU to see if it should exit immediately

Answer 2

Any reason not to use the HKCU Run key in the first place?

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]