I have a W10 laptop on which I run my Access-based application, but it is several years old and running very slowly and I have acquired a new laptop running W11. In the past, on transferring the application to a new PC, I have simply transferred the appropriate .dll and .ocx files into the relevant system folders and referenced them, but my new PC is not recognising the files. I realised they could have been corrupted, but I am wondering if this is defensive. Is there a way around it? Advice would be very gratefully received. Thank you.