1487760 - Server Error when launching .Net Infoview on IIS7 & Windows 2008 64-bit server

• Issue occurred after a fresh install of the product
• .Net Infoview gives a 'Service Unavailable' error
•  EventViewer shows that an ASP .NET unhandled exception has occurred
• Stack text generated by disabling the custom errors mode on Web.Config show details as below -
  
  Retrieving the COM class factory for component with CLSID {E063B04A-CB8B-460E-99D0-F7D8FA2FAAA2} failed due to the following error: 80040154.                                                                                                               
                                                                                                                                     
  Description:
  An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.                                                                   
                                                                                                                                     
  Exception Details:
  System.Runtime.InteropServices.COMException:                                                                    
  Retrieving the COM class factory for component with CLSID {E063B04A-CB8B-460E-99D0-F7D8FA2FAAA2} failed due to the following error: 80040154.                                                                                                                          
                                                                                                                                     
  Source Error:                                                                                                                           
  An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of                                                              
  the exception can be identified using the exception stack trace below.
               
  Stack Trace:                                                                                                                  
  [COMException (0x80040154): Retrieving the COM class factory for component with CLSID {E063B04A-CB8B-460E-99D0-F7D8FA2FAAA2} failed due to the following error: 80040154.]              
                                                                                                                                     
  CrystalDecisions.Enterprise.SessionMgr..ctor() +66                                                        
  BusinessObjects.Enterprise.Infoview.Common.Utilities.GetInstalledLanguages() +80          
  BusinessObjects.Enterprise.Infoview.Common.Utilities..cctor() +83
                                                        
  [TypeInitializationException: The type initializer for 'BusinessObjects.Enterprise.Infoview.Common.Utilities' threw an exception.]                                                                                            
  BusinessObjects.Enterprise.Infoview.Global.Application_Error(Object sender, EventArgs e) +619
  System.EventHandler.Invoke(Object sender, EventArgs e) +0                                    
  System.Web.HttpApplication.RaiseOnError() +174  

BusinessObjects Enterprise XI3.1 (all Service Packs)
Windows 2008 64-bit
IIS7
ASP .NET 2.0.507 or higher
Internet Explorer 7

IIS7 .NET InfoView "Service Unavailable" 64-bit "COM class factory" 80040154 E063B04A-CB8B-460E-99D0-F7D8FA2FAAA2 , KBA , BI-BIP-DEP , Webapp Deployment, Networking, Vulnerabilities, Webservices , Problem