Winhttp asynchronous

[TouEnMasm]

At last,it seem to be perfect.
I have found two functions who don't work the same way as in synchronous mode.

WinHttpQueryDataAvailable
WinHttpReadData

For thos two functions the  lpdwNumberOfBytesRead must be set to NULL.
If the parameter is not NULL,this producr garbage in the dowloded file.
The WinHttpCrackUrl is the function who give the correct port to use in the WinHttpConnect. (url_components.nPort).
The url redirection failed if the correct port is not in use.
In this case,the WINHTTP_CALLBACK_STATUS_REQUEST_ERROR  give the good advice,that is connection_error.
For each question asked to the server there is only one event who is really usable for the answer ,that is:

WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE          WinHttpQueryDataAvailable
WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE       WinHttpReceiveResponse
WINHTTP_CALLBACK_STATUS_READ_COMPLETE           WinHttpReadData
WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE      WinHttpSendRequest
WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE         WinHttpWriteData
WINHTTP_CALLBACK_STATUS_REQUEST_ERROR         Any of the above functions when an error occurs.

The WinHttpReadData used in the WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE must be execute as fast as possible and there is need
not to add too many code in the event.

The new dowload is in the first post
The synchrone sample as been also modify to show the callback (only usable for informations)