Update Status Field after Expiry Date

Consider the following table

Customer
custId char(10)
accountExpiryDate datetime
accountStatus bit

Now, I want to update the accountStatus to False as soon as the
current date becomes accountExpiryDate.

I think it can be done using "SQL Agent" but my webhost doesnt provide
me access to that. I have access only to the Query Analyzer.

Thanks
Shane

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