Download file in chunks
<p>I've got the problem as below:
There is some SOAP web service which allows to read stream files. I need to read the whole file divided to chunks and transmit to user. All actions should do not block UI main thread: user presses 'Save' button on save file dialog, and is able to move on to the next page or perform another action. I will be grateful for the sample solution. Note that the solution should work with IIS 5.1.</p>

<p>Regards,
Jimmy</p>
