Scanner does not work

I installed Vista on 5/2. i have an Epson CX6400 all in one.
Up until 10 days ago my scanner was working properly. Now it will not scan.

I am told that I do not have "Microsoft WPD filesystems volume driver".

I tried to update this and I am told that my driver is up to date. ??? No
scanner.

I have reinstalled the software for the printer. No scanner. It looks to me
to be a Microsoft Vista problem. But I don't know.

Can anyone help me or try to poine me in the right direction?

Thank you so much.
Sincerely, Mike
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Thank you so much, Mike