I just want to make it official that yes, Valtron and I got YMSG set up on Escargot. I say Valtron and I because Valtron kickstarted it with a simple TCP listener, a packet encoder/decoder, and some basic service code. I supplied the rest and eventually made it fit in the current infrastructure of Escargot. If you want to examine the codebase, go here: https://gitlab.com/valtron/msn-server/tree/feature/ymsg/front/ymsg.
With YMSG revived, not only can we bring back one of the “Big Four” (the big four IM applications), but we can also bring back the long awaited Yahoo and MSN interoperability! Yep, folks, you heard it right. Yahoo and MSN users could chat with each other without any fancy prerequisites. Just think of the many possibilities.
We plan to start out with YMSG9/10, implemented on Yahoo! client versions 5.0-5.5, then work our way up to YMSG16 (and if it does exist, YMSG17+). So all versions will be implemented, and everyone will get their slice of cake.