Manual patch for security vulnerability - how to replace files ensuring permissions

Hello

We have FME Server v2022.2.2 installed on Windows 2022 server and need to apply manual patch for security vulnerability, as per FME alert / article

https://support.safe.com/hc/en-us/articles/31265482270349-Security-Update-FME-Flow-Privilege-Escalation-Vulnerability#h_01JB2AENHZEBG9VCCFBJFTWX1R

The instructions include a note:

*When moving/overwriting files, please ensure that the original permissions of the file being overwritten are preserved, this is ./opt/fmeflow.

How best to do this?  We were planning on a simple copy and paste of the files themselves to the various directories, however this may overwrite existing permissions.  

What method of copy & replace files is recommended, it would be helpful if the windows command or powershell script could be provided to assist 

Please advise

Thanks