There's this program, The Bat, that makes log files for every e-mail account that the user creates in it. These are just the things that ask for deletion, so I wanted to add this to winapp2.ini, but I couldn't...
The Bat creates its directory in Program Files\The Bat!\ and there it creates subdirectories named MAIL# - and there, inside, it creates subdirectories named after the user's accounts, depending on how the user names them... so the thing to do is to enter Program Files\The Bat!\ and recursively delete *.log in all subdirs from there.
I tried this:
FileKey1=%ProgramFiles%\The Bat!\*.log|RECURSE
and this:
FileKey2=%ProgramFiles%\The Bat!|*.log|RECURSE
but they didn't work. :-\