Hi,
This is an old issue, that I posted sometime ago on this forum...
When you define a file to be deleted in Custom list, CCleaner delete it the first time, and then if it doesn't found that file anymore, it delete the file definition itself in the Custom window too, so if we have a program that recreate the file sometime in the future, CCleaner will not delete it, and you will need to define it again and again in the custom window.
Please keep custom file definitons in the Custom list.
Btw, adding selective deletion by mask (eg: *.gif or *string*.*) in Custom Folder for more precise file deletion will be a great feature to add too.
Thanks for this great program.
Best regards.