So, the Delete-RetiredApplications script that i wrote, has more or less been reborn into a "tool" instead, as i decided to do a GUI for it and add more functionality.
It now has a option to backup/archive the applications which is to be deleted from ConfigMgr.
As it sits it exports you applications using the "Export-CMApplication"-cmdlet with all related apps and content.
I will work on adding the option to ignore related and omit content later on.
The "WhatIf" option doesn't work yet, and the log is Sh*t at the moment... Never done a "log" function before, so its a learning process to get that done.
OBS Remember to test in a controlled environment!