Hi all, i have problem with myexchange i installed exchange 2007 sp2, and now owa not working. I reinstall iis 7 and CAexchange role, but still ihave the same error when i accessing owa :-(Event code: 3008 Event message: Configuration errorEvent time: 7.9.2009 14:07:40 Event time (UTC): 7.9.2009 12:07:40 Event ID: ddb1fa8164cf4180971fa2a54d601aef Event sequence: 1 Event occurrence: 1 Event detail code: 0 Application information: Application domain: /LM/W3SVC/1/ROOT/owa-2-128967988597380000 Trust level: Minimal Application Virtual Path: /owa Application Path: C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\ Machine name: SERVER1 Process information: Process ID: 11996 Process name: w3wp.exe Account name: NT AUTHORITY\SYSTEM Exception information: Exception type: HttpException Exception message: Could not load file or assembly.Microsoft.Exchange.Data, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Granting permission to start failed. (exceptionHRESULT: 0x80131418) (C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\web.config line 51) Request information: Request URL: https://localhost:443/owa/auth/logon.aspx?url=https://localhost/owa/&reason=0 Request path: /owa/auth/logon.aspx User host address: ::1 User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\SYSTEM Thread information: Thread ID: 6 Thread account name: NT AUTHORITY\SYSTEM Is impersonating: False Stack trace: v System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() v System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() v System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters)

Hi, Please perform following steps to check whether the issue persists: 1. Start>administrative tools 2. Open the IIS manager and drill down to the default web site. 3. In the right pane double click the .net trust level and change that to full (internal) 4. Save the settings and restart IIS Then, please access OWA to check whether the issue persists. Mike Shen TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

Hi Mike,Thank you, thats work :-) Super :)

hi all, I got bellow error after i upgrade exchage 2007 sp1 to sp2. Microsoft Exchange issued an unexpected response (404). Copy error details to clipboard Show details RequestUrl: https://mail.star-cell.net:443/owa/owa/auth/logon.aspxUser host address: 192.168.6.222User: infoEX Address: /o=First Organization/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=infoSMTP Address: info@star-cell.netOWA version: 8.1.240.5Mailbox server: mail1.star-cell.netExceptionException type: System.Web.HttpExceptionException message: The file '/owa/owa/auth/logon.aspx' does not exist.Call stack System.Web.UI.Util.CheckVirtualFileExists(VirtualPath virtualPath) System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) please reply to samphors.hem@hotmail.com. thanks

dear all, Could you please help? BR\Samphors

Hi, Can you see what errors are there in Event viewer on your CAS server? Also did u install the Exchange 2007 SP2 successfully? I think that it was installed with some errors or installation was not complete. Do u have only one CAS server in your exchange cluster? Regards,Laeeq Qazi|Team Lead(Exchange + Sharepoint + BES + DynamicsCRM) www.HostingController.com

hi, I am sure that 100% was completed during install exchange sp2. ( no error appear during installation) I have two CAS server, I have update only one server, now the update one was error. now i am running only one CAS server ( sp1) any more solution for CAS that update to exchange sp2? Regard, Samphors