this is not possible, here is can add games only from Xbox series S/X (if of course you have account from Xbox)
#how does the xbox 360 add games work
shut socket
shut socket
It is difficult for me to answer this question
sand rune
Are you referring to the horizon app?
Horizon was retired a long time ago, There should have been some warnings telling you this. Wemod does not provide support for it anymore. You would have to reach out on the forums as that’s where all the old members hang.
You will need to email support@wemod.com
Please feel free to checkout the forums. Your answers may already be answered if not create a post.