The path specified as the chosen file has one or more characters that are invalid in this platform

Product:
Cognos Analytics 11.1.7 if9
kit_version=11.1.7-2204120500
Manifest=casrv-manifest-11.1.7-2204120500-winx64h.json
Microsoft Windows 2016 Server

Issue:
You have downloaded the interim fix of CA11 and put it on a file share to install from.

The user you install with have only READ-ONLY access to the file share shared folder.

When run the installation you get strange errors, like:

The installation is unable to continue. Please make sure all product services have been stopped and applications have been closed.

Solution:

Ensure the user that you install with have full rights to the windows share where the cognos media files are.

Connect to \\servername\d$ if needed, to get the correct rights.

The installation program need write access to the folder where the media is stored.

More Information:

https://www.ibm.com/support/pages/node/6525664

https://www.ibm.com/support/pages/ibm-cognos-analytics-1117-fix-pack-4

https://www.ibm.com/support/pages/ibm-cognos-analytics-11x-fix-lists

https://www.ibm.com/support/pages/how-upgrade-your-version-cognos-analytics