Still no luck, unfortunately. The Setup tells me it will install the file PlayBTW_v1_2_example, but it doesn't look like the different file name is the problem. It looks like the file just never arrives. There is no error message or warning, and if I run the Setup again immediately, there is no warning of a duplicate file. I'm using Windows 10 and Windows Defender, but I'm due to upgrade to Windows 11 in the next few days, so I'll try again after that.