Downloading a file using internet explorer credentials in VB.NET

I want to download a file in VB.net from a website that requires credentials, all my users have their credentials to this website saved in th开发者_开发技巧eir IE settings. Is there a way to download a file from this website using the IE credentials? I'm trying to avoid from asking my users for their credentials.

thanks.

Edit: I need to download many files, so i need a way to download the files programmatically.

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just invoke this command from Process.Start:

explorer http://www......

this only works if you have the full url of the file you want to download. In case the default browser is not IE you should replace explorer with iexplore