Hi everyone, I am experiencing some application errors in event viewer. The errors that occur is: (posted the errors as they occur, in order) First error Event ID: 2268 Source: IIS-W3SVC-WP "Could not load all ISAPI filters for site 'SBS WEB APPLICATIONS'. Therefore site startup aborted." Second error Event ID: 2214 Source: IIS-W3SVC-WP "The HTTP Filter DLL C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\auth\owaauth.dll failed to load. The data is the error." First warning Event ID: 2436 Source: Windows SharePoint Services 3 Search The start address <sts3s://remote.mclea.no:987/contentdbid={838192f4-4753-4d6e-bbe6-e6cd7ade2b5e}> cannot be crawled. Context: Application 'Search index file on the search server', Catalog 'Search' Details: Access is denied. Check that the Default Content Access Account has access to this content, or add a crawl rule to crawl this content. (0x80041205) Third error Event ID: 2424 Source: Windows SharePoint Services 3 Search The update cannot be started because the content sources cannot be accessed. Fix the errors and try the update again. Context: Application 'Search', Catalog 'index file on the search server Search' Operating system: Windows Small Business Server 2008 x64-bit Service Pack 2. Application: Microsoft Exchange Server 2007 version 08.01.0240.006 Hardware: 6 GB ram, Intel Pentium Dual Core CPU - e5200 2,5 ghz Do you guys have any idea on how to solve these issues, and are the errors related to each other? Hope to hear from you, and thanks in advance. Best regards, Ruben Gilja.