INFO: Códigos de erro de WinInet (12001 12156 até)

   Code        Error Message and Description
   -----       -----------------------------
   12001       ERROR_INTERNET_OUT_OF_HANDLES
               No more handles could be generated at this time.

   12002       ERROR_INTERNET_TIMEOUT
               The request has timed out.

   12003       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.

   12004       ERROR_INTERNET_INTERNAL_ERROR
               An internal error has occurred.

   12005       ERROR_INTERNET_INVALID_URL
               The URL is invalid.

   12006       ERROR_INTERNET_UNRECOGNIZED_SCHEME
               The URL scheme could not be recognized or is not supported.

   12007       ERROR_INTERNET_NAME_NOT_RESOLVED
               The server name could not be resolved.

   12008       ERROR_INTERNET_PROTOCOL_NOT_FOUND
               The requested protocol could not be located.

   12009       ERROR_INTERNET_INVALID_OPTION
               A request to InternetQueryOption or InternetSetOption
               specified an invalid option value.

   12010       ERROR_INTERNET_BAD_OPTION_LENGTH
               The length of an option supplied to InternetQueryOption or
               InternetSetOption is incorrect for the type of option
               specified.

   12011       ERROR_INTERNET_OPTION_NOT_SETTABLE
               The request option cannot be set, only queried.

   12012       ERROR_INTERNET_SHUTDOWN
               The Win32 Internet function support is being shut down or
               unloaded.

   12013       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.

   12014       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.

   12015       ERROR_INTERNET_LOGIN_FAILURE
               The request to connect to and log on to an FTP server
               failed.

   12016       ERROR_INTERNET_INVALID_OPERATION
               The requested operation is invalid.

   12017       ERROR_INTERNET_OPERATION_CANCELLED
               The operation was canceled, usually because the handle on
               which the request was operating was closed before the
               operation completed.

   12018       ERROR_INTERNET_INCORRECT_HANDLE_TYPE
               The type of handle supplied is incorrect for this
               operation.

   12019       ERROR_INTERNET_INCORRECT_HANDLE_STATE
               The requested operation cannot be carried out because the
               handle supplied is not in the correct state.

   12020       ERROR_INTERNET_NOT_PROXY_REQUEST
               The request cannot be made via a proxy.

   12021       ERROR_INTERNET_REGISTRY_VALUE_NOT_FOUND
               A required registry value could not be located.

   12022       ERROR_INTERNET_BAD_REGISTRY_PARAMETER
               A required registry value was located but is an incorrect
               type or has an invalid value.

   12023       ERROR_INTERNET_NO_DIRECT_ACCESS
               Direct network access cannot be made at this time.

   12024       ERROR_INTERNET_NO_CONTEXT
               An asynchronous request could not be made because a zero
               context value was supplied.

   12025       ERROR_INTERNET_NO_CALLBACK
               An asynchronous request could not be made because a
               callback function has not been set.

   12026       ERROR_INTERNET_REQUEST_PENDING
               The required operation could not be completed because one
               or more requests are pending.

   12027       ERROR_INTERNET_INCORRECT_FORMAT
               The format of the request is invalid.

   12028       ERROR_INTERNET_ITEM_NOT_FOUND
               The requested item could not be located.

   12029       ERROR_INTERNET_CANNOT_CONNECT
               The attempt to connect to the server failed.

   12030       ERROR_INTERNET_CONNECTION_ABORTED
               The connection with the server has been terminated.

   12031       ERROR_INTERNET_CONNECTION_RESET
               The connection with the server has been reset.

   12032       ERROR_INTERNET_FORCE_RETRY
               Calls for the Win32 Internet function to redo the request.

   12033       ERROR_INTERNET_INVALID_PROXY_REQUEST
               The request to the proxy was invalid.

   12036       ERROR_INTERNET_HANDLE_EXISTS
               The request failed because the handle already exists.

   12037       ERROR_INTERNET_SEC_CERT_DATE_INVALID
               SSL certificate date that was received from the server is
               bad. The certificate is expired.

   12038       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.

   12039       ERROR_INTERNET_HTTP_TO_HTTPS_ON_REDIR
               The application is moving from a non-SSL to an SSL
               connection because of a redirect.

   12040       ERROR_INTERNET_HTTPS_TO_HTTP_ON_REDIR
               The application is moving from an SSL to an non-SSL
               connection because of a redirect.

   12041       ERROR_INTERNET_MIXED_SECURITY
               Indicates that the content is not entirely secure. Some of
               the content being viewed may have come from unsecured
               servers.

   12042       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.

   12043       ERROR_INTERNET_POST_IS_NON_SECURE
               The application is posting data to a server that is not
               secure.

   12110       ERROR_FTP_TRANSFER_IN_PROGRESS
               The requested operation cannot be made on the FTP session
               handle because an operation is already in progress.

   12111       ERROR_FTP_DROPPED
               The FTP operation was not completed because the session was
               aborted.

   12130       ERROR_GOPHER_PROTOCOL_ERROR
               An error was detected while parsing data returned from the
               gopher server.

   12131       ERROR_GOPHER_NOT_FILE
               The request must be made for a file locator.

   12132       ERROR_GOPHER_DATA_ERROR
               An error was detected while receiving data from the gopher
               server.

   12133       ERROR_GOPHER_END_OF_DATA
               The end of the data has been reached.

   12134       ERROR_GOPHER_INVALID_LOCATOR
               The supplied locator is not valid.

   12135       ERROR_GOPHER_INCORRECT_LOCATOR_TYPE
               The type of the locator is not correct for this operation.

   12136       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.

   12137       ERROR_GOPHER_ATTRIBUTE_NOT_FOUND
               The requested attribute could not be located.

   12138       ERROR_GOPHER_UNKNOWN_LOCATOR
               The locator type is unknown.

   12150       ERROR_HTTP_HEADER_NOT_FOUND
               The requested header could not be located.

   12151       ERROR_HTTP_DOWNLEVEL_SERVER
               The server did not return any headers.

   12152       ERROR_HTTP_INVALID_SERVER_RESPONSE
               The server response could not be parsed.

   12153       ERROR_HTTP_INVALID_HEADER
               The supplied header is invalid.

   12154       ERROR_HTTP_INVALID_QUERY_REQUEST
               The request made to HttpQueryInfo is invalid.

   12155       ERROR_HTTP_HEADER_ALREADY_EXISTS
               The header could not be added because it already exists.

   12156       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).