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WinInet Error Messages

A version of this page is also available for

Windows Embedded CE 6.0 R3

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.