Btw, here are some screenshots of Terra Messenger 2005 by Softonic, where I downloaded this program. It looks like official MSN client with slightly changed design.
This page is in Portuguese, not Spanish, however the messenger itself is in spanish.
Terra is still active today, but if i recall correctly it started being a Dial Up ISP.
I ACTUALLY PATCHED TERRA MESSENGER 2005 NOTE: YOU NEED NOTEPAD++ to edit carefully or the file will break and it’s cannot launch again
You can use Download link below if you don’t know how to patch or you don’t want to make the exe break.
You have to follow this instuction: https://escargot.log1p.xyz/patching
Same with MSN 5.0-6.2 does (MSN 4.7.2009 also work on this tutorial)
To login: You can use old MSN support or MSN 5.0+ account.
You may try again until login successed. (XP only) (Windows Vista, 7 or newer support better TLS 1.0 and TLS 1.1, 1.2(7 only) so it will work just like normal)
It may install at MSN 1.0-4.7 directory.(Expect Windows Messenger.)
NOTE: YOU HAVE TO KEEP TRYING LOGIN, IT WILL WORK, BECAUSE WINDOWS XP SOMETIME HAD PROBLEM WITH CONNECTING ESCARGOT MSN SERVER
I Recommended to install Internet Explorer 8.
Go to softonic site https://terra-messenger.softonic.com
Then download it.
Now download Notepad++ to edit (because windows notepad have lags when editing exe)
now Modified like the instruction how to patch MSN in Escargot page.