@ Thank-you. Step 2 helped me. I followed step 1 (lots of people giving that advice), but on Windows 10, when I right clicked the DLL and checked the properties, it said the file came from a different computer and had a box to check if I wanted to unlock the file. I did that, but it didn't seem to do the trick. When I validated it, it told me the file was invalid and asked me if I wanted Song Manager to download the correct version. Once I did that, everything was fine!