The primary solution , is send the upload data to another page , even send to another website .
So the aim is this :
for example :
your website is,
And then the Flash addon do not support SSL , so you need send it to another http website.
You can create another website for it :
this website do not need put any app code , you just need put the uploader dll and register the UploadModule into web.config.
and in that website , provide a empty page for the FlashUploadPage
so in your uploaderpage.aspx , you can set :
and you also need to keep mywebsite.com and mytempsite.com use the same tem directory :
<add key="CuteWebUI.AjaxUploader.TempDirectory" value="c:\mytemp" />
Flash do not allow you send data to another website , so you need add the crossdomain.xml to turn it on
If you finish these step ,
And the file will save to the c:\mytemp .