RHttpDownloadMgr: download exe file

[nguyend]

I use RHttpDownloadMgr to download one exe file from server and save it.
My app runs ok on emulator, but when I debug on device, my app can't download exe file

RHttpDownload& download = iDownloadMgr.CreateDownloadL(*aUrl);
TInt state = download.Start(); 

...
//in Observer

if (aEvent.iProgressState == EHttpContentTypeReceived)
		{
		User::LeaveIfError(aDownload.Start());
		}

	switch (aEvent.iDownloadState)
		{
		case EHttpDlCompleted:
			{
			TInt result = aDownload.SetStringAttribute(EDlAttrDestFilename, filename);
			aDownload.Move();
			aDownload.Delete();
			}
			break;
		case EHttpDlFailed:
			{
			aDownload.Delete();
			}
			break;
		}

I debug, when aEvent.iProgressState == EHttpContentTypeRequest is ok, but next step aEvent.iProgressState == EHttpProgNone and aEvent.iDownloadState == EHttpDlFailed

I have try with txt, or jpg is OK on emulator and device, but exe is not OK
Anybody can help me! Maybe my problem is contenttype of file

[Paul.Todd]

Probably you cannot download an exe file, you have to download a sis file.

[nguyend]

Thank you Paul.Todd for reply,

I have used Wiki to make my app, but about Download Manager APIs don't talk that I cannot download a exe file (maybe I don't see, I so sorry !)

So, can I have any ways to solve my problem ?

Thank a lot !