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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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