http file download failure

Hi,

We developed an application in vb.net that has word document download
thru http webrequest. It is working fine technically. The problem we
are facing is the caching of the file on the client side. We tried
giving the URL directly in IE and opened the word document. First it
showed the correct version of the document. I closed it and made
changes to the document on the server. Now when I opened the same
document on the client machine, it shows the previous version and not
the corrected one. I tried multiple times and it always showed the
first version. I disabled all browser caching but it did not work.

Any help is greatly appreciated.

thanks in advance.

Srinivas