Duplicate Cleaner Pro v5 error and fails to delete files

[dpcp]

I'm running Duplicate Cleaner Pro 5.0.13.

Sometimes while deleting duplicate files, the program opens an error box: "Error in Delete Duplicate Files: An item with the same key has already been added."

If I click "OK," the program stops. The log file says:

0 file(s) have been deleted.
202 File(s) had delete errors (Check log)

Please advise.

Thanks.

-dpcp

[DigitalVolcano]

​Are you scanning inside Zip files?
Zips have also been known to contain multiple files with the same name and folder, which do not work with the Windows delete functions.

​Things to try-
-Remove the bad zip files from your delete job
or
-Try unchecking 'Via Windows Shell' (next to the delete button). This will delete in a different way.

[dpcp]

Hi DigitalVolcano,

Thanks for the quick response--you solved the problem.

I was not scanning inside Zip files.

I did uncheck "Via Windows Shell," and it eliminated the error and also deleted the 202 files that the previous run said had delete errors. Here's the log:

205,432 file(s) have been deleted.
5,306 folder(s) have been removed.

Question: why not always disable the "Via Windows Shell" option?

--dpcp