WinInet Error Messages
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4/8/2010
The Windows Internet Services (WinInet) functions return Win32 error messages where appropriate. The following table shows the error messages that are specific to the WinInet functions.
| Constant | Description |
|---|---|
ERROR_FTP_DROPPED |
The File Transfer Protocol (FTP) operation was not completed because the session was aborted. |
ERROR_FTP_NO_PASSIVE_MODE |
Passive mode is not available on the server. |
ERROR_FTP_TRANSFER_IN_PROGRESS |
The requested operation cannot be made on the FTP session handle because an operation is already in progress. |
ERROR_HTTP_COOKIE_DECLINED |
The HTTP cookie was declined by the server. |
ERROR_HTTP_COOKIE_NEEDS_CONFIRMATION |
The HTTP cookie requires confirmation. |
ERROR_HTTP_DOWNLEVEL_SERVER |
The server did not return any headers. |
ERROR_HTTP_HEADER_ALREADY_EXISTS |
The header could not be added because it already exists. |
ERROR_HTTP_HEADER_NOT_FOUND |
The requested header could not be located. |
ERROR_HTTP_INVALID_HEADER |
The supplied header is invalid. |
ERROR_HTTP_INVALID_QUERY_REQUEST |
The request made to HttpQueryInfo is invalid. |
ERROR_HTTP_INVALID_SERVER_RESPONSE |
The server response could not be parsed. |
ERROR_HTTP_NOT_REDIRECTED |
The HTTP request was not redirected. |
ERROR_HTTP_REDIRECT_FAILED |
The redirection failed because either the scheme changed (for example, HTTP to FTP) or all attempts made to redirect failed (the default is five attempts). |
ERROR_HTTP_REDIRECT_NEEDS_CONFIRMATION |
The redirection requires user confirmation. |
ERROR_INTERNET_ASYNC_THREAD_FAILED |
The application could not start an asynchronous thread. |
ERROR_INTERNET_BAD_OPTION_LENGTH |
The length of an option supplied to InternetQueryOption or InternetSetOption is incorrect for the type of option specified. |
ERROR_INTERNET_BAD_REGISTRY_PARAMETER |
A required registry value was located but is an incorrect type or has an invalid value. |
ERROR_INTERNET_CANNOT_CONNECT |
The attempt to connect to the server failed. |
ERROR_INTERNET_CHG_POST_IS_NON_SECURE |
The application is posting and attempting to change multiple lines of text on a server that is not secure. |
ERROR_INTERNET_CLIENT_AUTH_CERT_NEEDED |
The server is requesting client authentication. |
ERROR_INTERNET_CLIENT_AUTH_NOT_SETUP |
Client authorization is not set up on this computer. |
ERROR_INTERNET_CONNECTION_ABORTED |
The connection with the server has been terminated. |
ERROR_INTERNET_CONNECTION_RESET |
The connection with the server has been reset. |
ERROR_INTERNET_DIALOG_PENDING |
Another thread has a password dialog box in progress. |
ERROR_INTERNET_DISCONNECTED |
The Internet connection has been lost. |
ERROR_INTERNET_EXTENDED_ERROR |
An extended error was returned from the server. This is typically a string or buffer containing a verbose error message. Call InternetGetLastResponseInfo to retrieve the error text. |
ERROR_INTERNET_FAILED_DUETOSECURITYCHECK |
The function failed due to a security check. |
ERROR_INTERNET_FORCE_RETRY |
The WinInet function needs to redo the request. |
ERROR_INTERNET_FORTEZZA_LOGIN_NEEDED |
The requested resource requires FORTEZZA authentication. |
ERROR_INTERNET_HANDLE_EXISTS |
The request failed because the handle already exists. |
ERROR_INTERNET_HTTP_TO_HTTPS_ON_REDIR |
The application is moving from a non–Secure Sockets Layer (SSL) to an SSL connection because of a redirect. |
ERROR_INTERNET_HTTPS_HTTP_SUBMIT_REDIR |
The data being submitted to an SSL connection is being redirected to a non-SSL connection. |
ERROR_INTERNET_HTTPS_TO_HTTP_ON_REDIR |
The application is moving from an SSL to a non-SSL connection because of a redirect. |
ERROR_INTERNET_INCORRECT_FORMAT |
The format of the request is invalid. |
ERROR_INTERNET_INCORRECT_HANDLE_STATE |
The requested operation cannot be carried out because the handle supplied is not in the correct state. |
ERROR_INTERNET_INCORRECT_HANDLE_TYPE |
The type of handle supplied is incorrect for this operation. |
ERROR_INTERNET_INCORRECT_PASSWORD |
The request to connect and log on to an FTP server could not be completed because the supplied password is incorrect. |
ERROR_INTERNET_INCORRECT_USER_NAME |
The request to connect and log on to an FTP server could not be completed because the supplied user name is incorrect. |
ERROR_INTERNET_INSERT_CDROM |
The request requires a CD-ROM to be inserted in the CD-ROM drive to locate the resource requested. |
ERROR_INTERNET_INTERNAL_ERROR |
An internal error has occurred. |
ERROR_INTERNET_INVALID_OPERATION |
The requested operation is invalid. |
ERROR_INTERNET_INVALID_OPTION |
A request to InternetQueryOption or InternetSetOption specified an invalid option value. |
ERROR_INTERNET_INVALID_PROXY_REQUEST |
The request to the proxy was invalid. |
ERROR_INTERNET_INVALID_URL |
The URL is invalid. |
ERROR_INTERNET_ITEM_NOT_FOUND |
The requested item could not be located. |
ERROR_INTERNET_LOGIN_FAILURE |
The request to connect and log on to an FTP server failed. |
ERROR_INTERNET_LOGIN_FAILURE _DISPLAY_ENTITY_BODY |
The MS-Logoff digest header has been returned from the Web site. This header specifically instructs the digest package to purge credentials for the associated realm. This error will only be returned if INTERNET_ERROR_MASK_LOGIN_FAILURE_DISPLAY_ENTITY_BODY has been set. |
ERROR_INTERNET_MIXED_SECURITY |
The content is not entirely secure. Some of the content being viewed may have come from unsecured servers. |
ERROR_INTERNET_NAME_NOT_RESOLVED |
The server name could not be resolved. |
ERROR_INTERNET_NEED_UI |
A user interface or other blocking operation has been requested. |
ERROR_INTERNET_NO_CALLBACK |
An asynchronous request could not be made because a callback function has not been set. |
ERROR_INTERNET_NO_CONTEXT |
An asynchronous request could not be made because a zero context value was supplied. |
ERROR_INTERNET_NO_DIRECT_ACCESS |
Direct network access cannot be made at this time. |
ERROR_INTERNET_NOT_INITIALIZED |
Initialization of the WinInet function has not occurred. This indicates that a higher-level function, such as InternetOpen, has not been called yet. |
ERROR_INTERNET_NOT_PROXY_REQUEST |
The request cannot be made through a proxy. |
ERROR_INTERNET_OPERATION_CANCELLED |
The operation was canceled, usually because the handle on which the request was operating was closed before the operation completed. |
ERROR_INTERNET_OPTION_NOT_SETTABLE |
The requested option cannot be set, only queried. |
ERROR_INTERNET_OUT_OF_HANDLES |
No more handles could be generated at this time. |
ERROR_INTERNET_POST_IS_NON_SECURE |
The application is posting data to a server that is not secure. |
ERROR_INTERNET_PROTOCOL_NOT_FOUND |
The requested protocol could not be located. |
ERROR_INTERNET_PROXY_SERVER_UNREACHABLE |
The designated proxy server cannot be reached. |
ERROR_INTERNET_REDIRECT_SCHEME_CHANGE |
The function could not handle the redirection because the scheme changed (for example, HTTP to FTP). |
ERROR_INTERNET_REGISTRY_VALUE_NOT_FOUND |
A required registry value could not be located. |
ERROR_INTERNET_REQUEST_PENDING |
The required operation could not be completed because one or more requests are pending. |
ERROR_INTERNET_RETRY_DIALOG |
The dialog box should be retried. |
ERROR_INTERNET_SEC_CERT_CN_INVALID |
The SSL certificate common name (host name field) is incorrect — for example, if you entered www.<server1>.com and the common name on the certificate says www.<server2>.com. |
ERROR_INTERNET_SEC_CERT_DATE_INVALID |
The SSL certificate date that was received from the server is bad. The certificate is expired. |
ERROR_INTERNET_SEC_CERT_ERRORS |
The SSL certificate contains errors. |
ERROR_INTERNET_SEC_CERT_NO_REV |
The SSL certificate was not revoked. |
ERROR_INTERNET_SEC_CERT_REV_FAILED |
Revocation of the SSL certificate failed. |
ERROR_INTERNET_SEC_CERT_REVOKED |
The SSL certificate was revoked. |
ERROR_INTERNET_SEC_INVALID_CERT |
The SSL certificate is invalid. |
ERROR_INTERNET_SECURITY_CHANNEL_ERROR |
The application experienced an internal error loading the SSL libraries. |
ERROR_INTERNET_SERVER_UNREACHABLE |
The Web site or server indicated is unreachable. |
ERROR_INTERNET_SHUTDOWN |
The WinInet function support is being shut down or unloaded. |
ERROR_INTERNET_TCPIP_NOT_INSTALLED |
The required protocol stack is not loaded and the application cannot start WinSock. |
ERROR_INTERNET_TIMEOUT |
The request has timed out. |
ERROR_INTERNET_UNABLE_TO_CACHE_FILE |
The function was unable to cache the file. |
ERROR_INTERNET_UNABLE_TO_DOWNLOAD_SCRIPT |
The automatic proxy configuration script could not be downloaded. The INTERNET_FLAG_MUST_CACHE_REQUEST flag was set. |
ERROR_INTERNET_UNRECOGNIZED_SCHEME |
The URL scheme could not be recognized or is not supported. |
ERROR_INVALID_HANDLE |
The handle that was passed to the API has been either invalidated or closed. This is a Win32 error code. |
ERROR_MORE_DATA |
More data is available. This is a Win32 error code. |
ERROR_NO_MORE_FILES |
No more files have been found. This is a Win32 error code. |
ERROR_NO_MORE_ITEMS |
No more items have been found. This is a Win32 error code. |
INTERNET_ERROR_BASE |
Not an error code. This is the base value used for the Internet error codes. |