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Error Messages
The Win32 Internet functions return Win32 error messages where appropriate. The following error messages are specific to the Win32 Internet functions.
- INTERNET_ERROR_BASE
- Base value of the Internet error codes.
- ERROR_FTP_DROPPED
- The FTP operation was not completed because the session was aborted.
- ERROR_FTP_TRANSFER_IN_PROGRESS
- The requested operation cannot be made on the FTP session handle because an operation is already in progress.
- ERROR_GOPHER_ATTRIBUTE_NOT_FOUND
- The requested attribute could not be located.
- ERROR_GOPHER_DATA_ERROR
- An error was detected while receiving data from the Gopher server.
- ERROR_GOPHER_END_OF_DATA
- The end of the data has been reached.
- ERROR_GOPHER_INCORRECT_LOCATOR_TYPE
- The type of the locator is not correct for this operation.
- ERROR_GOPHER_INVALID_LOCATOR
- The supplied locator is not valid.
- ERROR_GOPHER_NOT_FILE
- The request must be made for a file locator.
- ERROR_GOPHER_NOT_GOPHER_PLUS
- The requested operation can only be made against a Gopher+ server, or with a locator that specifies a Gopher+ operation.
- ERROR_GOPHER_PROTOCOL_ERROR
- An error was detected while parsing data returned from the Gopher server.
- ERROR_GOPHER_UNKNOWN_LOCATOR
- The locator type is unknown.
- 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_REDIRECT_FAILED
- The redirection failed because either the scheme changed (for example, HTTP to FTP) or all attempts made to redirect failed (default is five attempts).
- ERROR_HTTP_REDIRECT_NEEDS_CONFIRMATION
- The redirection requires user confirmation.
- ERROR_HTTP_INVALID_SERVER_RESPONSE
- The server response could not be parsed.
- 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_AUTO_PROXY_SCRIPT
- There was an error in the automatic proxy configuration script.
- 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 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 Win32 Internet function needs to redo the request.
- 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-SSL to an SSL connection because of a redirect.
- ERROR_INTERNET_HTTPS_TO_HTTP_ON_REDIR
- The application is moving from an SSL to an 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_CA
- The function is unfamiliar with the Certificate Authority that generated the server's certificate.
- 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_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_PROXY_REQUEST
- The request cannot be made via a proxy.
- ERROR_INTERNET_OFFLINE
- Identical to the preferred value ERROR_INTERNET_DISCONNECTED.
- 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 sever 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_SEC_CERT_CN_INVALID
- SSL certificate common name (host name field) is incorrect—for example, if you entered www.server.com and the common name on the certificate says www.different.com.
- ERROR_INTERNET_SEC_CERT_DATE_INVALID
- SSL certificate date that was received from the server is bad. The certificate is expired.
- ERROR_INTERNET_SEC_CERT_REVOKED
- SSL certificate was revoked.
- ERROR_INTERNET_SEC_INVALID_CERT
- 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 Win32 Internet 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. (Win32 error code)
- ERROR_NO_MORE_FILES
- No more files have been found. (Win32 error code)
- ERROR_NO_MORE_ITEMS
- No more items have been found. (Win32 error code)
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