If you've read my previous blog post "Accessing Excel files on a x64 machine" and you loved our ACE OLEDB Provider, I want to let you know that we released "Access Database Engine 2010 Service Pack 1". This update is also available in Windows Update. That means if you've already installed Access Database Engine 2010 and your machine is set to receive updates from windows updates automatically, likely that you've received this update already ;)
But I wanted to let you know if the automatic updates are not set (for example in your production servers), you may want to upgrade it.
As in all updates, please test your application(s) on your testing environment before putting onto your production server.