When you start the catalog installation you get Error 2753. The file 'dsa.exe' is not marked for installation.
Solution
This error could appear if you tried installing an older disc or download set when a more current version was already installed, or you are trying to reinstall after removing the existing catalogs.
- Press OK on the message and wait for the installer to close down.
- Delete the DSA folder on the computer. This is located at C:\Program Files (x86)\2020\DSA
- Restart the installation.