Hello, I wrote a web API in php/mysql that returns a ZIP file when doing a GET request of this type: www.mysite.com/folder/?user=myname And adding a special Header: Authorization: xxxxxxxxxxxxxxxxxxxx So based on the code i found  everywhere on the forums I did the following program: #include "WinHttp.au3" $hOpen = _WinHttpOpen() $hConnect = _WinHttpConnect($hOpen, "www.mysite.com") $hRequest = _WinHttpOpenRequest($hConnect, 'GET', "/folder/?user=