I have been successfully using Metastock Pro v11 for about 7 years + end of day data from Paritech via DD3.I've used DD3 exclusively during that period.
Recently I have started having an issue - I run The Explorer to do a scan on a selected folder. When the results come up and I try to open them all, an error message comes up on about 2/3 of the results - "Security Not Found".
I have to click "cancel" manually on each error message to proceed and each of the files opens.
I should add there have been no changes to my laptop, neither MS nor the Stocks database have been amended or moved. All is as it has been for years.
Any advice please from Paritech support and others with the same issue.