Hi Everyone, I ran the Exchange 2007 SP1 Install, and ran into an error when the setup was configuring the Client Access Role. Here's the ExchangeSetupLog (last lines of the file):[12/11/2007 2:32:46 PM] [2] Process standard error: [12/11/2007 2:32:46 PM] [2] Ending processing.[12/11/2007 2:32:46 PM] [1] Executing 'install-ClientAccessIisWebServiceExtensions', handleError = False[12/11/2007 2:32:46 PM] [2] Launching sub-task '$error.Clear(); install-ClientAccessIisWebServiceExtensions'.[12/11/2007 2:32:46 PM] [2] Beginning processing.[12/11/2007 2:32:47 PM] [2] [WARNING] An unexpected error has occurred and debug information is being generated: Object reference not set to an instance of an object.[12/11/2007 2:32:48 PM] [2] [ERROR] Object reference not set to an instance of an object.[12/11/2007 2:51:57 PM] [1] Exception : System.Management.Automation.CmdletInvocationException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Exchange.Management.IisTasks.IsapiExtension.IntStringToBoolean(String intString) at Microsoft.Exchange.Management.IisTasks.IsapiExtension.Parse(String extensionString) at Microsoft.Exchange.Management.IisTasks.IsapiExtensionList..ctor(String hostName) at Microsoft.Exchange.Management.IisTasks.InstallIisWebServiceExtensions.InternalProcessRecord() at Microsoft.Exchange.Configuration.Tasks.Task.ProcessRecord() at System.Management.Automation.Cmdlet.DoProcessRecord() at System.Management.Automation.CommandProcessor.ProcessRecord() --- End of inner exception stack trace --- at System.Management.Automation.Internal.PipelineProcessor.SynchronousExecuteEnumerate(Object input, Hashtable errorResults, Boolean enumerate) at System.Management.Automation.Parser.PipelineNode.Execute(Array input, Pipe outputPipe, ArrayList& resultList) at System.Management.Automation.Parser.StatementListNode.Execute(Array input, Pipe outputPipe, ArrayList& resultList)[12/11/2007 2:51:58 PM] [1] [WARNING] An unexpected error has occurred and debug information is being generated: Object reference not set to an instance of an object.[12/11/2007 2:51:58 PM] [1] [ERROR] Object reference not set to an instance of an object.[12/11/2007 2:51:58 PM] [1] [ERROR] Object reference not set to an instance of an object.Any Ideas?Thanks

I found to Events in the Application Log:Event Type: ErrorEvent Source: MSExchange CommonEvent Category: General Event ID: 4999Date: 12/11/2007Time: 2:32:50 PMUser: N/AComputer: MDescription:Watson report about to be sent to dw20.exe for process id: 2640, with parameters: E12, c-RTL-AMD64, 08.01.0240.006, ExSetupUI, M.E.Management, M.E.M.I.IsapiExtension.IntStringToBoolean, System.NullReferenceException, 605a, 08.01.0240.005. ErrorReportingEnabled: TrueFor more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.Event Type: ErrorEvent Source: Microsoft Exchange ServerEvent Category: NoneEvent ID: 5000Date: 12/11/2007Time: 2:33:39 PMUser: N/AComputer: MDescription:EventType e12, P1 c-rtl-amd64, P2 08.01.0240.006, P3 exsetupui, P4 m.e.management, P5 m.e.m.i.isapiextension.intstringtoboolean, P6 system.nullreferenceexception, P7 605a, P8 08.01.0240.005, P9 NIL, P10 NIL.For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.Data:0000: 65 00 31 00 32 00 2c 00 e.1.2.,.0008: 20 00 63 00 2d 00 72 00 .c.-.r.0010: 74 00 6c 00 2d 00 61 00 t.l.-.a.0018: 6d 00 64 00 36 00 34 00 m.d.6.4.0020: 2c 00 20 00 30 00 38 00 ,. .0.8.0028: 2e 00 30 00 31 00 2e 00 ..0.1...0030: 30 00 32 00 34 00 30 00 0.2.4.0.0038: 2e 00 30 00 30 00 36 00 ..0.0.6.0040: 2c 00 20 00 65 00 78 00 ,. .e.x.0048: 73 00 65 00 74 00 75 00 s.e.t.u.0050: 70 00 75 00 69 00 2c 00 p.u.i.,.0058: 20 00 6d 00 2e 00 65 00 .m...e.0060: 2e 00 6d 00 61 00 6e 00 ..m.a.n.0068: 61 00 67 00 65 00 6d 00 a.g.e.m.0070: 65 00 6e 00 74 00 2c 00 e.n.t.,.0078: 20 00 6d 00 2e 00 65 00 .m...e.0080: 2e 00 6d 00 2e 00 69 00 ..m...i.0088: 2e 00 69 00 73 00 61 00 ..i.s.a.0090: 70 00 69 00 65 00 78 00 p.i.e.x.0098: 74 00 65 00 6e 00 73 00 t.e.n.s.00a0: 69 00 6f 00 6e 00 2e 00 i.o.n...00a8: 69 00 6e 00 74 00 73 00 i.n.t.s.00b0: 74 00 72 00 69 00 6e 00 t.r.i.n.00b8: 67 00 74 00 6f 00 62 00 g.t.o.b.00c0: 6f 00 6f 00 6c 00 65 00 o.o.l.e.00c8: 61 00 6e 00 2c 00 20 00 a.n.,. .00d0: 73 00 79 00 73 00 74 00 s.y.s.t.00d8: 65 00 6d 00 2e 00 6e 00 e.m...n.00e0: 75 00 6c 00 6c 00 72 00 u.l.l.r.00e8: 65 00 66 00 65 00 72 00 e.f.e.r.00f0: 65 00 6e 00 63 00 65 00 e.n.c.e.00f8: 65 00 78 00 63 00 65 00 e.x.c.e.0100: 70 00 74 00 69 00 6f 00 p.t.i.o.0108: 6e 00 2c 00 20 00 36 00 n.,. .6.0110: 30 00 35 00 61 00 2c 00 0.5.a.,.0118: 20 00 30 00 38 00 2e 00 .0.8...0120: 30 00 31 00 2e 00 30 00 0.1...0.0128: 32 00 34 00 30 00 2e 00 2.4.0...0130: 30 00 30 00 35 00 2c 00 0.0.5.,.0138: 20 00 4e 00 49 00 4c 00 .N.I.L.0140: 20 00 4e 00 49 00 4c 00 .N.I.L.0148: 0d 00 0a 00 .... They may not be related, but they were written pretti much at the same time of the 1st error.