Topic update: Potplayer latest version currently is v230705 (changes at t1.daumcdn.net/potplayer/PotPlayer/v4/Update2/UpdateEng.html).
According to VideoHelp (www.videohelp.com/software/PotPlayer), PotPlayer v1.7.17508 is the last compatible version for Windows XP (and v1.6.63262 for non SSE2 CPUs).