//	Please Note: these values are mirrored in dtguiapi.bas, please keep in sync
DEF_ERROR(OK,                	   0, "no error")
DEF_ERROR(NotInitialized, 		1001, "inference engine was not initialized")
DEF_ERROR(AlreadyInitialized,   1002, "inference engine was already initialized")
DEF_ERROR(NoModel,				1003, "no model was yet specified")
DEF_ERROR(Memory,				1004, "could not allocate enough memory")
DEF_ERROR(FileOpen,				1005, "could not open file")
DEF_ERROR(FileRead,				1006, "could not read file")
DEF_ERROR(FileWrite,			1007, "could not write file")
DEF_ERROR(FileSignature,		1008, "file has incorrect signature")
DEF_ERROR(NotRegistered,        1010, "calling task is not registered")
DEF_ERROR(NoInput,				1011, "no input file specified on command line")
DEF_ERROR(OutOfRange,			1017, "value is out of range")
DEF_ERROR(InvalidKszid,			1018, "incorrect 'kind of string' value")
DEF_ERROR(FunctionNotAvailable,	1019, "function not available in this version")
DEF_ERROR(DdeConnectFailure,	1040, "unable to connect to DDE server")
DEF_ERROR(DdeItemFailure,		1041, "error fetching requested DDE item")
DEF_ERROR(InapplicableModel,	1042, "operation cannot be applied to this model")
DEF_ERROR(InvalidModel,			1043, "model is incomplete or invalid for this operation")
DEF_ERROR(FixableAbnormal,		1044, "at least one fixable node is abnormal")
DEF_ERROR(MTOProbDefAbnormal,	1045, "one problem defining node must be abnormal")
DEF_ERROR(NoHypoNode,			1046, "no hypothesis node")
DEF_ERROR(NoChange,				2001, "state of engine did not change")
DEF_ERROR(NotInfoNode,			2002, "not an informational variable")
DEF_ERROR(MandatoryLeft,		2003, "not all mandatory nodes have been instantiated yet")
DEF_ERROR(UnsetMandatory,		2004, "mandatory nodes cannot be uninstantiated")
DEF_ERROR(ServiceHasNoProb,		2005, "service node has no associated probabilities")
DEF_ERROR(ModelNotSF,			2010, "loaded model is not a single-fault model")
DEF_ERROR(NoNodesWithLabel,		2011, "no nodes with specified label exist")
DEF_ERROR(InvalidSymbol,		2051, "invalid symbolic name")
DEF_ERROR(RegisterClass,		3001, "RegisterClass failed")
DEF_ERROR(CreateWindow,			3002, "CreateWindow failed")
DEF_ERROR(TcbidNotFound,		3003, "Unknown training card button")
DEF_ERROR(FuncArgCount,			5001, "function invocation argument count error")
DEF_ERROR(FuncArgType,			5002, "function argument type error")
DEF_ERROR(SyntaxError,			5003, "Syntax error in DSC/DSF file")
DEF_ERROR(FileType,				5004, "Only formula declarations allowed in DSF file")
DEF_ERROR(InvalidSymbolType,	5005, "Symbol type incorrect or conflicts with existing symbol")
DEF_ERROR(FuncOrNodeRef,		5006, "invalid function or node reference")
DEF_ERROR(MandNodeHasParents,	5021, "mandatory node(s) with parents detected")
DEF_ERROR(ZeroDivide,			5051, "attempt to divide by zero")
DEF_ERROR(CreatesCycle,			5052, "arc creates a cycle" )
DEF_ERROR(UnsupportedAction,	5053, "that action is not yet supported")
DEF_ERROR(DuplicateItem,		5054, "duplicate item")
DEF_ERROR(DistNotPositive,		6001, "the distribution is not positive")
DEF_ERROR(NoMode, 				6002, "no mode")
DEF_ERROR(NegativeDeterminant,	6003, "Negative Determinant")
DEF_ERROR(NYI,					9999, "option is not yet implemented")