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The mission script creates 12 enemy units via Reinforcements trigger at the moment of beacon destruction. The map’s unit pool already contains 492 units (mostly civilian vehicles). Adding 12 exceeds MAX_UNITS = 500 . The 13th unit’s constructor writes past UnitClass::vtable , corrupting the next object in memory – which happens to be the mission victory trigger pointer.
| Exception Code | Meaning | Likely Root Cause | |----------------|---------|-------------------| | 0xC0000005 | Access violation | Pool overflow / null pointer | | 0xC00000FD | Stack overflow | AI recursion | | 0xC0000090 | Floating-point exception | Divide-by-zero in weapon damage calc | | 0x80000003 | Breakpoint | Debug trap left in retail (rare) | red alert 2 has encountered an internal error
[Video] ScreenWidth=800 ScreenHeight=600 VideoBackBuffer=no Render3D=no [Options] Weather=no UnitSpeeding=no MaxInfantry=350 MaxVehicles=300 Document version 1.0 – last updated 2026-04-17 For educational and software preservation purposes only. The mission script creates 12 enemy units via
InfantryClass::Allocate uses a static array of size MAX_INFANTRY (often 500). Exceeding this silently corrupts the next object’s vtable, leading to a call via a corrupted function pointer → access violation. Exceeding this silently corrupts the next object’s vtable,
EIP: 0x0045A3F2 (InfantryClass::Update) – read from 0xCDCDCDCD 2.2 AI Script Recursion (≈15%) The AI scripting system ( AI.ini , TeamTypes , TaskForces ) can trigger infinite loops if a team’s script contains a “jump” to itself without a terminal action. The engine lacks recursion depth guard. Eventually, the stack grows into a guard page → STATUS_STACK_OVERFLOW (0xC00000FD) → internal error.
Create a TeamType with script: 1. Attack [waypoint 0] 2. Jump to step 1 Assign this team to a trigger that repeats every 30 frames. 2.3 Renderer Resource Leak (≈10%) The GWorld (graphics world) uses DirectDraw 7 surfaces for tiles, cameos, and sidebar buttons. On maps with frequent weather changes (e.g., snow tileset + lightning storm superweapon), surface reference counts are mismanaged. After ~150–200 leaks, IDirectDrawSurface::Lock fails, returning DDERR_SURFACELOST . The game attempts to restore surfaces but sometimes misses the palette reset, resulting in a palette index out of bounds during a blit → access violation. 2.4 Multiplayer Desync Propagation (≈8%) In online play, the game uses a deterministic lockstep model. When checksums differ between players (e.g., due to a single bit flip in a random number generator state), each client raises a desync flag. The netcode’s “critical failure” handler calls FatalError with the internal error dialog instead of displaying a desync warning.