This Microsoft Office SharePoint Server 2007 for Search Hotfix Roll-up fixes a problem in which case-sensitive Web content cannot be crawled. This update also fixes a problem in which sites that require forms-based or cookie-based authentication are not crawled.
You can get specific information about this update in Microsoft Knowledge Base article Description of the Hotfix Roll-up for Microsoft Office SharePoint Server 2007 for Search(KB939077).
Microsoft, .NET, Security Update, Hotfix, Microsoft Office, SharePoint Server 2007, KB 939077, Download