| HTTP_STATUS_CONTINUE | 0x00000064 | OK to continue with request |
| HTTP_STATUS_SWITCH_PROTOCOLS | 0x00000065 | server has switched protocols in upgrade header |
| HTTP_STATUS_OK | 0x000000C8 | request completed |
| HTTP_STATUS_CREATED | 0x000000C9 | object created, reason = new URI |
| HTTP_STATUS_ACCEPTED | 0x000000CA | async completion (TBS) |
| HTTP_STATUS_PARTIAL | 0x000000CB | partial completion |
| HTTP_STATUS_NO_CONTENT | 0x000000CC | no info to return |
| HTTP_STATUS_RESET_CONTENT | 0x000000CD | request completed, but clear form |
| HTTP_STATUS_PARTIAL_CONTENT | 0x000000CE | partial GET fulfilled |
| HTTP_STATUS_WEBDAV_MULTI_STATUS | 0x000000CF | WebDAV Multi-Status |
| HTTP_STATUS_AMBIGUOUS | 0x0000012C | server couldn't decide what to return |
| HTTP_STATUS_MOVED | 0x0000012D | object permanently moved |
| HTTP_STATUS_REDIRECT | 0x0000012E | object temporarily moved |
| HTTP_STATUS_REDIRECT_METHOD | 0x0000012F | redirection w/ new access method |
| HTTP_STATUS_NOT_MODIFIED | 0x00000130 | if-modified-since was not modified |
| HTTP_STATUS_USE_PROXY | 0x00000131 | redirection to proxy, location header specifies proxy to use |
| HTTP_STATUS_REDIRECT_KEEP_VERB | 0x00000133 | HTTP/1.1: keep same verb |
| HTTP_STATUS_PERMANENT_REDIRECT | 0x00000134 | Object permanently moved keep verb |
| HTTP_STATUS_BAD_REQUEST | 0x00000190 | invalid syntax |
| HTTP_STATUS_DENIED | 0x00000191 | access denied |
| HTTP_STATUS_PAYMENT_REQ | 0x00000192 | payment required |
| HTTP_STATUS_FORBIDDEN | 0x00000193 | request forbidden |
| HTTP_STATUS_NOT_FOUND | 0x00000194 | object not found |
| HTTP_STATUS_BAD_METHOD | 0x00000195 | method is not allowed |
| HTTP_STATUS_NONE_ACCEPTABLE | 0x00000196 | no response acceptable to client found |
| HTTP_STATUS_PROXY_AUTH_REQ | 0x00000197 | proxy authentication required |
| HTTP_STATUS_REQUEST_TIMEOUT | 0x00000198 | server timed out waiting for request |
| HTTP_STATUS_CONFLICT | 0x00000199 | user should resubmit with more info |
| HTTP_STATUS_GONE | 0x0000019A | the resource is no longer available |
| HTTP_STATUS_LENGTH_REQUIRED | 0x0000019B | the server refused to accept request w/o a length |
| HTTP_STATUS_PRECOND_FAILED | 0x0000019C | precondition given in request failed |
| HTTP_STATUS_REQUEST_TOO_LARGE | 0x0000019D | request entity was too large |
| HTTP_STATUS_URI_TOO_LONG | 0x0000019E | request URI too long |
| HTTP_STATUS_UNSUPPORTED_MEDIA | 0x0000019F | unsupported media type |
| HTTP_STATUS_RETRY_WITH | 0x000001C1 | retry after doing the appropriate action. |
| HTTP_STATUS_SERVER_ERROR | 0x000001F4 | internal server error |
| HTTP_STATUS_NOT_SUPPORTED | 0x000001F5 | required not supported |
| HTTP_STATUS_BAD_GATEWAY | 0x000001F6 | error response received from gateway |
| HTTP_STATUS_SERVICE_UNAVAIL | 0x000001F7 | temporarily overloaded |
| HTTP_STATUS_GATEWAY_TIMEOUT | 0x000001F8 | timed out waiting for gateway |
| HTTP_STATUS_VERSION_NOT_SUP | 0x000001F9 | HTTP version not supported |
| ERROR_WINHTTP_OUT_OF_HANDLES | 0x00002EE1 | |
| ERROR_WINHTTP_TIMEOUT | 0x00002EE2 | |
| ERROR_WINHTTP_INTERNAL_ERROR | 0x00002EE4 | |
| ERROR_WINHTTP_INVALID_URL | 0x00002EE5 | |
| ERROR_WINHTTP_UNRECOGNIZED_SCHEME | 0x00002EE6 | |
| ERROR_WINHTTP_NAME_NOT_RESOLVED | 0x00002EE7 | |
| ERROR_WINHTTP_INVALID_OPTION | 0x00002EE9 | |
| ERROR_WINHTTP_OPTION_NOT_SETTABLE | 0x00002EEB | |
| ERROR_WINHTTP_SHUTDOWN | 0x00002EEC | |
| ERROR_WINHTTP_LOGIN_FAILURE | 0x00002EEF | |
| ERROR_WINHTTP_OPERATION_CANCELLED | 0x00002EF1 | |
| ERROR_WINHTTP_INCORRECT_HANDLE_TYPE | 0x00002EF2 | |
| ERROR_WINHTTP_INCORRECT_HANDLE_STATE | 0x00002EF3 | |
| ERROR_WINHTTP_CANNOT_CONNECT | 0x00002EFD | |
| ERROR_WINHTTP_CONNECTION_ERROR | 0x00002EFE | |
| ERROR_WINHTTP_RESEND_REQUEST | 0x00002F00 | |
| ERROR_WINHTTP_SECURE_CERT_DATE_INVALID | 0x00002F05 | |
| ERROR_WINHTTP_SECURE_CERT_CN_INVALID | 0x00002F06 | |
| ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED | 0x00002F0C | |
| ERROR_WINHTTP_SECURE_INVALID_CA | 0x00002F0D | |
| ERROR_WINHTTP_SECURE_CERT_REV_FAILED | 0x00002F19 | |
| ERROR_WINHTTP_CANNOT_CALL_BEFORE_OPEN | 0x00002F44 | |
| ERROR_WINHTTP_CANNOT_CALL_BEFORE_SEND | 0x00002F45 | |
| ERROR_WINHTTP_CANNOT_CALL_AFTER_SEND | 0x00002F46 | |
| ERROR_WINHTTP_CANNOT_CALL_AFTER_OPEN | 0x00002F47 | |
| ERROR_WINHTTP_HEADER_NOT_FOUND | 0x00002F76 | |
| ERROR_WINHTTP_INVALID_SERVER_RESPONSE | 0x00002F78 | |
| ERROR_WINHTTP_INVALID_HEADER | 0x00002F79 | |
| ERROR_WINHTTP_INVALID_QUERY_REQUEST | 0x00002F7A | |
| ERROR_WINHTTP_HEADER_ALREADY_EXISTS | 0x00002F7B | |
| ERROR_WINHTTP_REDIRECT_FAILED | 0x00002F7C | |
| ERROR_WINHTTP_SECURE_CHANNEL_ERROR | 0x00002F7D | |
| ERROR_WINHTTP_BAD_AUTO_PROXY_SCRIPT | 0x00002F86 | |
| ERROR_WINHTTP_UNABLE_TO_DOWNLOAD_SCRIPT | 0x00002F87 | |
| ERROR_WINHTTP_SECURE_INVALID_CERT | 0x00002F89 | |
| ERROR_WINHTTP_SECURE_CERT_REVOKED | 0x00002F8A | |
| ERROR_WINHTTP_NOT_INITIALIZED | 0x00002F8C | |
| ERROR_WINHTTP_SECURE_FAILURE | 0x00002F8F | |
| ERROR_WINHTTP_UNHANDLED_SCRIPT_TYPE | 0x00002F90 | |
| ERROR_WINHTTP_SCRIPT_EXECUTION_ERROR | 0x00002F91 | |
| ERROR_WINHTTP_AUTO_PROXY_SERVICE_ERROR | 0x00002F92 | |
| ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE | 0x00002F93 | |
| ERROR_WINHTTP_AUTODETECTION_FAILED | 0x00002F94 | |
| ERROR_WINHTTP_HEADER_COUNT_EXCEEDED | 0x00002F95 | |
| ERROR_WINHTTP_HEADER_SIZE_OVERFLOW | 0x00002F96 | |
| ERROR_WINHTTP_CHUNKED_ENCODING_HEADER_SIZE_OVERFLOW | 0x00002F97 | |
| ERROR_WINHTTP_RESPONSE_DRAIN_OVERFLOW | 0x00002F98 | |
| ERROR_WINHTTP_CLIENT_CERT_NO_PRIVATE_KEY | 0x00002F99 | |
| ERROR_WINHTTP_CLIENT_CERT_NO_ACCESS_PRIVATE_KEY | 0x00002F9A | |
| ERROR_WINHTTP_CLIENT_AUTH_CERT_NEEDED_PROXY | 0x00002F9B | |
| ERROR_WINHTTP_SECURE_FAILURE_PROXY | 0x00002F9C | |