| Previous | Next |
| NS_E_CURL_INVALIDHOSTNAME | NS_E_CURL_INVALIDSCHEME |
NS_E_CURL_INVALIDPATH
Diagnosing NS_E_CURL_INVALIDPATH in the Windows Media pipeline
This result (0xC00D1327) is returned at the path component is malformed for the requested URL operation. It identifies the invalidpath URL check, so troubleshooting should begin with the object and operation that own that checkpoint rather than with a broad player reset.
Before any socket is opened, the player decomposes a URL into scheme, authority, host, port, path and escaped data in the invalidpath diagnostic record. It may also combine a relative reference with a base URL or convert a file URL into a path; each operation has a different validity rule when isolating the invalidpath case. In the case of this result, preserve the earliest lower-level result because wrappers can map several different causes to the same HRESULT at the invalidpath checkpoint.
Where the failure occurs
At the invalidpath URL check, the component has already accepted the earlier prerequisites but cannot cross the boundary described as the path component is malformed for the requested URL operation. That distinction matters: success in opening the file, resolving the host or creating a COM object does not prove that this later operation is valid during a controlled invalidpath retest.
The strongest reproduction is normalize only the path separators and escaping while retaining the same scheme, host and query for evidence about invalidpath. If the same call advances after that single change, the evidence supports the boundary. If it does not, return to the first nested error rather than widening the repair in the invalidpath diagnostic record.
Preserve the raw and parsed URL
| Capture | Why it matters |
|---|---|
| Owning call | Record the API method, object identity, thread or callback and timestamp for the invalidpath URL check. |
| Decisive values | the original unmodified string, character count, encoding, base URL if any, parsed scheme, host, port and path, plus required and supplied output-buffer lengths at the invalidpath checkpoint. |
| Object generation | Note when the reader, writer, graph, URL object, streaming session or metadata provider was created; stale state can reproduce this result after configuration has changed. |
| First nested result | Keep the earliest codec, COM, socket, DNS, parser or provider status before this result; later UI messages are less specific. |
| Comparison case | Use one known-good resource that exercises the same the invalidpath URL check while changing only the rejected precondition. |
One-component URL experiment
- Log
0xC00D1327, it, the exact operation and the first failure time before closing the invalidpath incident. - Preserve the original unmodified string, character count, encoding, base URL if any, parsed scheme, host, port and path, plus required and supplied output-buffer lengths in the invalidpath diagnostic record.
- Do not reuse a graph, session, reader or metadata object created before the relevant configuration or resource changed when isolating the invalidpath case.
- Perform one isolated test: normalize only the path separators and escaping while retaining the same scheme, host and query at the invalidpath checkpoint.
- Repeat through the same API and protocol path; a different player or local-copy test is useful only as a comparison, not as proof that the invalidpath URL check is fixed.
- Confirm the expected next state and retain any new HRESULT as a separate downstream result during a controlled invalidpath retest.
What the parser result proves
| Retest result | Interpretation |
|---|---|
| The identical call still returns the code | The values governing the invalidpath URL check are unchanged, or the caller is still using an older object generation. |
| A fresh object succeeds | Lifetime or cached state contributed to it; correct object recreation instead of applying a machine-wide workaround before closing the invalidpath incident. |
| The call advances to another HRESULT | the invalidpath URL check boundary was cleared. Diagnose the new code at its own format, graph, URL, network or metadata stage when isolating the invalidpath case. |
| Only one resource fails | The evidence favors content, URL, publishing point, stream, attribute or object-specific state rather than a global outage at the invalidpath checkpoint. |
Nearby results are not interchangeable
Main distinction: URL syntax errors occur before server DNS, proxy selection or streaming-session creation while tracing the invalidpath path.
| Nearby HRESULT | How to compare it |
|---|---|
NS_E_CURL_INVALIDCHAR | Compare the owning API and first rejected value; it belongs to a neighboring checkpoint, not automatically to the same cause as it. |
NS_E_CURL_INVALIDHOSTNAME | Use object state and operation order to decide which code is authoritative when both appear in one trace for evidence about invalidpath. |
NS_E_CURL_INVALIDSCHEME | Retain it separately if it appears only after the condition has cleared. |
Misleading actions
- blindly decoding and re-encoding the whole URL, which can change reserved delimiters and resource identity in the invalidpath diagnostic record.
- Do not erase the first occurrence by repeatedly retrying; callbacks and reconnects can replace the useful state with a later wrapper error when isolating the invalidpath case.
- Do not publish credentials, protected-content material or complete private URLs at the invalidpath checkpoint. Record redacted identifiers, lengths, hashes and protocol fields needed to reproduce the invalidpath URL check.
Technical references
- RFC 3986: URI generic syntax
- Handling URLs with WinINet
- CreateUri
- ParseURL
- Microsoft HRESULT registry
Close the incident only after the original the operation succeeds on a current object and the expected next state is observed during a controlled invalidpath retest.
Looking for a different code? Search another status or error code.