After doing changes in msconfig I suddenly got this message when trying to click Apply or Ok :
'an access denied error was returned while attempting to change a service. You may need to log on using an Administrator account to make the specified changes'.
I also can't reproduce that (as posted by other posters here) - unless avast! services are affected, which is the expected behavior. Are you sure that you didn't change the state of some of avast!'s services as well?
But I do agree that there should be a more meaningful message, if it is generated by the self defence rather than by windows. The same problem occurred when someone to modify the clean notes message and that message didn't mention avast self-defence.
No, the message doesn't come from avast! - avast! just denies access to the item (file, process, registry value) - all related error messages are given by the application trying to do the change.
However, you are right, it's not possible to edit the e-mail notes now... should be fixed somehow.
I could do absolutely nothing until I acknowledged the message, not even use snagit screen capture, I had to use Ctrl+alt+PrintSrceen and then edit it.
Yes, that's on purpose. It's similar to Vista UAC - to prevent "automated clickers" from closing the window without user's knowledge.