Consider the following scenario:

• A domain member computer is running Windows Vista, Windows Server 2003, or Windows XP.
• On the domain member computer, an application calls the LsaLookupSids function to translate a security identifier (SID) to a user name.
• The user name has been changed on a domain controller.

In this scenario, the LsaLookupSids function may return the old user name instead of the new user name. This behavior may prevent the application from working correctly.

You try to open a 2007 Microsoft Office document that is on a shared folder, or you try to save a 2007 Office document to a shared folder. When you do this, you are prompted two times to type your username and your password to access the shared folder.

When you try use Windows Easy Transfer to transfer files and settings from a Microsoft Windows-based computer to a Windows Vista-based computer, the user name and password are not transferred.