Old version remains, launches after new install

[marine2026]

v8.6.38980
Windows 7 target OS

After running the new installer with a new product code the old version appears to be correctly replaced in the file system, but the old version launches instead of the new version?

[marine2026]

Problem was solved using the option to install the application folder contents into the parent folder.

Windows 7 seems to be doing something with the installation files that causes this problem.