@JasonMark - the following has been taken from Windows 11 (if no luck search on this forum for Windows 11
"I will look at FMPA 15 again, as it was the last MDI version and there are still a few old Windows system where the customers haven’t invested in the upgrading as yet.
After getting Windows build 21277 with the x64 emulation, the key step to succeeding with the previously failed FileMaker installation attempts was to remove all Microsoft Visual C++ Redistributable entries in the Apps & Features list (in Control Panels), then install the preview version of the ARM64 C++ redistributable from:
https://aka.ms/arm64previewredist and install this.
Then install FileMaker Pro 19 as standard, allowing it to also install its standard Microsoft Visual C++ 2017 Redistributable (x64) 14.13.26020, so there are 2 entries in Apps & Features. We never install Bonjour, hence have not for this.
FileMaker 16 installed OK, but launching it initially resulted in ‘The application has been installed incorrectly or modified by another program Please run the installer to get a fresh copy of the application after determining the case’ but selecting ‘Modify’ for this in Apps & Features and ‘Repair’ sorted out whatever the problem was.
I’m just heading out of the office, but I”ve also postings on the Parallels Forum relating to this (somewhere).
Hope this helps in the meantime
Andy