As long as your CPU supports POPCNT, there’s no reason not to use x64 Server. Only if x64 Server does not run, use x86 exec.
Also, about beta…
Currently it’s not possible to enter it and you must wait for new registration wave (topic covered many times by now). Also, there’s no TS4. From TS3 it went straight to TS5 (known also simply as New TeamSpeak). Please read this just in case.
