|  Server Status Codes
 | 
| Value | Keyword | Explanation | 
| 300 | AMBIGUOUS | The server couldn't decide what to return.
 | 
| 301 | MOVED | The requested resource has been assigned to a new permanent URL (Uniform Resource Locator), and any future references to this resource should be done using one of the returned URLs.
 | 
| 302 | REDIRECT | The requested resource resides temporarily under a different URL.
 | 
| 303 | REDIRECT_METHOD | The response to the request can be found under a different URL
and should be retrieved using a GET method on that resource.
 | 
| 304 | NOT_MODIFIED | The requested resource has not been modified.
 | 
| 305 | USE_PROXY | The requested resource must be accessed through the proxy given by the location field.
 | 
| 307 | REDIRECT_KEEP_VERB | The redirected request keeps the same verb. HTTP/1.1 behavior.
 | 
| 400 | BAD_REQUEST | The request could not be processed by the server due to invalid syntax.
 | 
| 401 | DENIED | The requested resource requires user authentication.
 | 
| 403 | FORBIDDEN | The server understood the request, but is refusing to fulfill it.
 | 
| 404 | NOT_FOUND | The server has not found anything matching the requested URL (Uniform Resource Identifier).
 | 
| 405 | BAD_METHOD | The method used is not allowed.
 | 
| 406 | NONE_ACCEPTABLE | No responses acceptable to the client were found.
 | 
| 407 | PROXY_AUTH_REQ | Proxy authentication required.
 | 
| 408 | REQUEST_TIMEOUT | The server timed out waiting for the request.
 | 
| 409 | CONFLICT | 	The request could not be completed due to a conflict with the current state of the resource. The user should resubmit with more information.
 | 
| 410 | GONE | 	The requested resource is no longer available at the server, and no forwarding address is known.
 | 
| 411 | LENGTH_REQUIRED | The server refuses to accept the request without a defined content length.
 | 
| 412 | PRECOND_FAILED | The precondition given in one or more of the request header fields evaluated to false when it was tested on the server.  
 | 
| 413 | REQUEST_TOO_LARGE | The server is refusing to process a request because the requested entity
is larger than the server is willing or able to process.
 | 
| 414 | URL_TOO_LONG | The server is refusing to service the request because the requested URL (Uniform Resource Identifier) is longer than the server is willing to interpret.
 | 
| 415 | UNSUPPORTED_MEDIA | The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.
 | 
| 500 | SERVER_ERROR | The server encountered an unexpected condition that prevented it from fulfilling the request.
 | 
| 501 | NOT_SUPPORTED | The server does not support the functionality required to fulfill the request.
 | 
| 502 | BAD_GATEWAY | 	The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.
 | 
| 503 | SERVICE_UNAVAIL | The service is temporarily overloaded.
 | 
| 504 | GATEWAY_TIMEOUT | The request was timed out waiting for a gateway.
 | 
| 505 | VERSION_NOT_SUP | The server does not support, or refuses to support, the HTTP protocol version that was used in the request message.
 | 
|  Internet API Error Returns
 | 
| 12000 | GENERIC_SERVER_LOOKUP_ERROR	(Browser mode only)
 | 
| 12001 | OUT_OF_HANDLES
 | 
| 12002 | SERVER_TIMEOUT
 | 
| 12003 | EXTENDED_ERROR
 | 
| 12004 | INTERNAL_ERROR
 | 
| 12005 | INVALID_URL
 | 
| 12010 | UNRECOGNIZED_SCHEME
 | 
| 12007 | NAME_NOT_RESOLVED
 | 
| 12008 | PROTOCOL_NOT_FOUND
 | 
| 12009 | INVALID_OPTION
 | 
| 12010 | BAD_OPTION_LENGTH
 | 
| 12011 | OPTION_NOT_SETTABLE
 | 
| 12012 | SHUTDOWN
 | 
| 12013 | INCORRECT_USER_NAME
 | 
| 12014 | INCORRECT_PASSWORD
 | 
| 12015 | LOGIN_FAILURE
 | 
| 12016 | INVALID_OPERATION
 | 
| 12017 | OPERATION_CANCELLED
 | 
| 12018 | INCORRECT_HANDLE_TYPE
 | 
| 12019 | INCORRECT_HANDLE_STATE
 | 
| 12020 | NOT_PROXY_REQUEST
 | 
| 12021 | REGISTRY_VALUE_NOT_FOUND
 | 
| 12022 | BAD_REGISTRY_PARAMETER
 | 
| 12023 | NO_DIRECT_ACCESS
 | 
| 12024 | NO_CONTEXT
 | 
| 12025 | NO_CALLBACK
 | 
| 12026 | REQUEST_PENDING
 | 
| 12027 | INCORRECT_FORMAT 12028 ITEM_NOT_FOUND
 | 
| 12029 | CANNOT_CONNECT
 | 
| 12030 | CONNECTION_ABORTED
 | 
| 12031 | CONNECTION_RESET
 | 
| 12032 | FORCE_RETRY
 | 
| 12033 | INVALID_PROXY_REQUEST
 | 
| 12034 | NEED_UI
 | 
| 12036 | HANDLE_EXISTS
 | 
| 12037 | SEC_CERT_DATE_INVALID
 | 
| 12038 | SEC_CERT_CN_INVALID
 | 
| 12039 | HTTP_TO_HTTPS_ON_REDIR
 | 
| 12040 | HTTPS_TO_HTTP_ON_REDIR
 | 
| 12041 | MIXED_SECURITY
 | 
| 12042 | CHG_POST_IS_NON_SECURE
 | 
| 12043 | POST_IS_NON_SECURE
 | 
| 12044 | CLIENT_AUTH_CERT_NEEDED
 | 
| 12045 | INVALID_CA
 | 
| 12046 | CLIENT_AUTH_NOT_SETUP
 | 
| 12047 | ASYNC_THREAD_FAILED
 | 
| 12048 | REDIRECT_SCHEME_CHANGE
 | 
| 12049 | DIALOG_PENDING
 | 
| 12050 | RETRY_DIALOG
 | 
| 12052 | HTTPS_HTTP_SUBMIT_REDIR
 | 
| 12053 | INSERT_CDROM
 | 
|  HTTP API Errors
 | 
| 12150 | HEADER_NOT_FOUND
 | 
| 12151 | DOWNLEVEL_SERVER
 | 
| 12152 | INVALID_SERVER_RESPONSE
 | 
| 12153 | INVALID_HEADER
 | 
| 12154 | INVALID_QUERY_REQUEST
 | 
| 12155 | HEADER_ALREADY_EXISTS
 | 
| 12156 | REDIRECT_FAILED
 | 
| 12160 | NOT_REDIRECTED
 | 
| 12161 | COOKIE_NEEDS_CONFIRMATION
 | 
| 12162 | COOKIE_DECLINED  | 
| 12168 | REDIRECT_NEEDS_CONFIRMATION
 | 
| Additional Internet API Error Codes
 | 
| 12157 | SECURITY_CHANNEL_ERROR
 | 
| 12158 | UNABLE_TO_CACHE_FILE
 | 
| 12159 | TCPIP_NOT_INSTALLED
 | 
| 12163 | DISCONNECTED
 | 
| 12164 | SERVER_UNREACHABLE
 | 
| 12165 | PROXY_SERVER_UNREACHABLE
 | 
| 12166 | BAD_AUTO_PROXY_SCRIPT
 | 
| 12167 | UNABLE_TO_DOWNLOAD_SCRIPT
 | 
| 12169 | SEC_INVALID_CERT
 | 
| 12170 | SEC_CERT_REVOKED
 | 
| Internet API Error Returns
 | 
| 12171 | FAILED_DUETOSECURITYCHECK
 |