Hello,
Sorry for bumping an old thread, but as this suggestion is something that I was looking for myself I thought I'd post here.
I know this would be in opposition to what CCleaner is about (deleting stuff!) but it would be very handy if it could be made to create a log file when the program is run silently.
At the moment I run it weekly with the /auto switch, along with a bunch of other programs (defrag, virus scan, spybot, etc) using Window's Task Scheduler during the early hours when I'm asleep. In the morning I make a point of checking various logs to see if everything went smoothly. The only thing I don't know is what CCleaner has been up to!
Anywho, good work with the program - keep it up!
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Xepha