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ERROR_PROC_NOT_FOUND
The requested export is absent
ERROR_PROC_NOT_FOUND usually follows GetProcAddress or module loading when a required function name or ordinal is not exported by the loaded DLL. It often exposes version skew, an incorrect decorated name, or loading the wrong module build.
Checks to perform
- Inspect the DLL export table for the exact case-sensitive name or ordinal.
- Verify the module version and architecture.
- Check C versus C++ linkage and calling-convention name decoration.
- Confirm the loader selected the intended file rather than another copy earlier in the search path.
Recovery
Use an API available in the installed version, deploy the matching module, or implement a documented fallback for optional exports. Never call a null function pointer after lookup failure. Version checks should complement, not replace, direct export detection.
References
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