PC•Tips and Tricks

Did CCleaner, a valuable cleaning tool, delete a file that one of your programs needs?

August 8, 2008 by Ian Brown No Comments

A client of mine recently had CCleaner, a valuable cleaning tool, delete a file that one of his programs (which was poorly designed) needed to run, even though that file was in a temp folder.

The file that it deleted on his system was DAO.msi. So, if this happens to you with a different file, then replace DAO.msi with the name of the file that you are needing to keep on your system.

If this happens to you with this file, or another file, then here is how to tell CCleaner to exclude that file so you can continue to use this valuable cleaning tool:


1. Start CCleaner.
2. Click Options->Exclude, then click Add File.
3. Either browse to DAO.msi, or input it’s path, i.e.; copy+paste it.
4. Now click Advanced, and tick Save all settings to INI file – that way you can backup your CCleaner settings and never have to input that exclusion again.
5. Now click the large Cleaner button and do an Analyze scan, the file DAO.msi should no longer be listed as a file to delete.

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Written by Ian Brown
Ian has been involved with computers since very young. He took his first computer class when he was just 8 years old. He always had an affinity for computers, but never really took it seriously. It was not until he graduated from college and experienced the real world for a while did he realize that computers may be where his talent and passion lie. He has since branched out into Internet marketing and LOVES it. He currently resides in Los Angeles where he services clients ranging from residential to small business to celebrities.