The es2launcher.exe file acts as a gateway to verify ownership or set up the game environment. When it crashes, it is typically due to:
If you’re seeing an (often “The instruction at 0x… referenced memory at 0x… The memory could not be read/written”), you’re likely trying to run an older game—typically Mass Effect 2 (or another EA title from that era) that uses the EA Support/ES2 launcher. es2launcher exe application error