Weeii, that worked! thanks!!
did the same and now i get the file to the desktop!
#include <ie.au3>
Opt('WinTitleMatchMode', 4)
Opt('WinSearchChildren', 1)
Opt('WinDetectHiddenText', 1)
$WebPage = "long url to internal system"
$oIE = _IECreate($WebPage,0,0,0)
WinWait('classname=#32770', 'Publisher:')
If Not WinActive('classname=#32770', 'Publisher:') Then WinActivate('classname=#32770', 'Publisher:')
Sleep(250)
ControlSend('classname=#32770', 'Do you want to open or save this file?', '', "!s")
If Not WinActive('classname=#32770', 'Save as') Then WinActivate('classname=#32770', 'Save As')
Sleep(250)
ControlSend('classname=#32770', '', '', "!s")
If Not WinActive('classname=#32770', 'Save as') Then WinActivate('classname=#32770', 'Save As')
Sleep(250)
ControlSend('classname=#32770', '', '', "!y")
Exit