Hey again, Titan crew. Through some personal experimentation, I was able to more closely define what exactly is going wrong with my Paragon Chat.
I am able to log in to the game, as of right now, but only onto a map with absolutely no one in it. If I should log into a character who is in a map with any players at all in it, the game immediately loses its connection to the mapserver, locks, and crashes. Assuming I log in successfully, I can roam around free, use /mapmove to teleport to populated maps, and act and chat normally.
As before, I've confirmed this occurs with my antivirus on and off, with the paragonchat.exe file and all prerequisite files in low-security folders, whether Paragonchat is run through Tequila or independently, and whether I run it as an administrator or not. -localhost has no effect on these crashes, and I've even tried using /xmpp_disconnect and /xmpp_connect to try and reboot my connection while it's going through its minutes-long hangup sequence - to no avail.
I'm running it on Windows 7, as stated before. I have Paragonchat 0.97e, downloaded it myself to confirm this. Any ideas what might be going wrong, and how I might fix it or at least work around it (aside from the obvious answer of "make sure to log out in empty zones")?