Quick note, I have been using this program for a few years and it has never removed needed DLL files from any of the computers I have used it on... I in fact used it the other day. Though I believe I have never checked a number of options that CCleaner gives you during it's "cleaning." I have used the basic tools as Matt guessed and CC gives you options. I guess you selected several of these options and performed a much more judicious cleaning. Chris ******************************** Christopher J. Patridge, PhD NRC Post Doctoral Research Associate Naval Research Laboratory Washington, DC 20375 Cell: 315-529-0501 On 5/2/2013 8:02 AM, Matt Newville wrote:

...

Dear Amativa,

Bruce is right, Ccleaner messed up your system and, unfortunately, beyond repair. Ccleaner promises indeed to remove unused DLL's from your system but is very bad at guessing which DLL's are really obsolete and has a tendency to assume DLL's are unused instead of playing it safe. Therefore, this piece of software needs to be handled by an expert hand, or you butcher your system as you seem to have done. I know this because I made the exact same mistake 16 years ago after which my windows 98 didn't even boot up anymore, so I'm even surprised your pc is still running.

The solution to this problem? Complete reinstallation of your OS, trying to manually repair is very complicated and time consuming. You will probably run into similar problems with other applications as well because of missing DLL's.

regards, Alexander

-- dr. ir. Alexander Riskin Doctor-Navorser IMO - Inorganic and Physical Chemistry

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_______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit Perhaps you're right, but this sounds a bit pessimistic to me. Surely, this program doesn't always mess up every computer to the

On Thu, May 2, 2013 at 2:00 AM, Alexander Riskin wrote: point that the OS needs to be reinstalled. It's not clear to me that it removes DLLs it deems are "not needed", or that this is what happened here. I've not used this particular tool, but it looks to me like it removes truly unneeded files (browser caches, temp folders) and the cleans the registry. If I had to, I'd guess the problem is in the registry, not in deleted files. The cleaner may have left a registry backup, or a system restore tool might help. But if the system is working fine and only Demeter is not, I doubt the OS needs to be reinstalled.

--Matt _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit