| Previous | Next |
| WININET_E_INTERNAL_ERROR | WININET_E_UNRECOGNIZED_SCHEME |
WININET_E_INVALID_URL
WININET_E_INVALID_URL means that WinINet could not accept the supplied URL before it established a usable request. The problem is normally in the URL syntax or in a component supplied separately to the API, not in the remote server response.
What to inspect
- The scheme, host, port, escaping of reserved characters, and any embedded whitespace or control characters.
- Whether a relative URL was combined with a base URL correctly. Microsoft recommends canonicalizing a relative URL before passing it to
InternetOpenUrl. - Whether user input was decoded or concatenated twice, producing an invalid separator or percent escape.
Do not repair by guessing
Log the original logical URL and the final string passed to WinINet, but avoid logging credentials or access tokens. A generic string replacement can turn an invalid address into a different valid target.
Microsoft: InternetOpenUrl · Microsoft: WinINet error messages
Looking for a different code? Search another status or error code.