0xC0000002

0xC0000002 is an NTSTATUS error code commonly documented as STATUS_NOT_IMPLEMENTED. It is used by Windows operating systems to indicate that the requested operation or function is not implemented by the component receiving the request. NTSTATUS codes form a 32-bit space used by the kernel and many system components to report success, information, warning, and error conditions. The value 0xC0000002 encodes an error severity and identifies the specific status as not implemented.

Context and usage: This code may be returned by kernel-mode drivers, subsystems, or native APIs when a function is not available or supported by the target component. It often appears in low-level software interactions, such as driver calls or system service queries, where a particular feature is not implemented in the running module.

Relation to Win32 APIs: In user-mode applications, NTSTATUS values are frequently translated into Win32 error codes by wrappers such as RtlNtStatusToDosError. As a result, 0xC0000002 can surface in user-mode as a corresponding Windows error, depending on the translation performed by the application or library in use.

Causes and handling: Common causes include calling a function that the component does not implement, using a feature not supported on the current OS version or hardware, or software builds that omit certain functionality. When encountered, developers should verify the API’s availability for the running environment, consult vendor or platform documentation, update the component if a newer version provides the feature, or implement an alternative or fallback path if possible.

See also: STATUS_NOT_IMPLEMENTED, NTSTATUS, RtlNtStatusToDosError, Windows error mapping.