I know that this isn't supposed to be a support forum, where can I aked questions ? I send Monero to a client that no longer works (Monero Client.Net), it's thread is already closed. Is there any place I can get help (if it's even possible to get the Monero back) ?
Thanks in advance
You could try to search for them in Reddit or other social media.
But your best option would be to look for your privatekeys.
It would be a mix of different words or something similar to an address.
With the privatekey you can recover your funds in any wallet, no matter what was your original client.