I have installed a program that ran under Windows XP, but when I try to run it under Windows 7 Professional, I get this error:
"The application has failed to start because its side-by-side configuration is incorrect. Please see the application log or use the command line sxstrace.exe tool for more."
I tried to run it using campatibility mode, but it does not run. I have the same program installed on two other machines running the same OS and it runs fine.
https://www.howtogeek.com/howto/10436/using-program-compatibility-mode-in-windows-7/
If that doesn't work, you can use VMWare workstation and keep a VM of XP on your Win7 machine and run your app that way.
I've done that for a couple of games that won't work even in compatibility mode.