What does Windows error code 126 (ERROR_MOD_NOT_FOUND) mean? Status / error code: Category: Constant name: Source: Operating System: Description: The specified module could not be found. Could be also: ConstantTypeOS EADDRNOTAVAILerrnoSolaris ENOTCONNerrnoWindows SYSTEM_THREAD_EXCEPTION_NOT_HANDLEDBugCheck CodeWindows Looking for a different code? Search another status or error code.