| Previous | Next |
| NS_E_INVALID_NAME | NS_E_FILE_ALLOCATION_FAILED |
NS_E_FILE_OPEN_FAILED
NS_E_FILE_OPEN_FAILED: the failing boundary
NS_E_FILE_OPEN_FAILED (0xC00D001D) means Failed to open a file. The important boundary is file open; do not replace this result with a broader “Windows Media failed” diagnosis.
What this result proves
This code proves that the file was identified, but the open operation itself failed. It does not, by itself, prove a codec, permissions, network, device, or media problem outside that boundary. Preserve the first lower-level result when one exists, because later Player or Encoder errors can hide the original cause.
Evidence and focused verification
Record the canonical path, service/process identity, desired access, sharing flags, and the first win32 file error; then repeat the same open under the same identity. Keep the media object, endpoint, profile, or device identity fixed while changing only that rejected precondition. A successful retest should pass this exact boundary; a different HRESULT from a later stage is new evidence, not recurrence of NS_E_FILE_OPEN_FAILED.
Technical references
Looking for a different code? Search another status or error code.