Frequent requests to enter the smart card PIN after you install KB 2288953 and enable smart card PIN caching in Windows Vista or in Windows Server 2008
Consider the following scenario:
- You use Microsoft Office Outlook 2007 on a computer that is running Windows Vista or Windows Server 2008.
- You enable smart card PIN caching on the computer.
- You install the following update on the computer:
2288953 MS10-064: Description of the security update for Office Outlook 2007: September 14, 2010
In this scenario, you are prompted to enter the smart card PIN every time that you try to send a signed email message or read an encrypted email message.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2589130.