All,

I found the problem: I complied my code with the "Any CPU" setting, but the Enterprise Library is complied with the "x86" setting. When .NET runs my code and tries to load EntLibrary, it assumes the EntLibrary is also 64bit, thus cause the problem.

This http://blogs.msdn.com/jaiprakash/archive/2005/10/06/477645.aspx page has more information on this problem.

Thanks,

 Ken,

 I am using Microsoft Enterprise Library November 2005. To makesure I could use ClickOnce technology to deploy my WinForm client, I strong signed the DLLs.

 I can install and run the program on a 32bit machine without any problems. However, once I copied the program to a 64bit machine, it would not run.

 I also found more error information:

   Unhandled Exception: System.BadImageFormatException: Could not load file or asse
   mbly 'Microsoft.Practices.EnterpriseLibrary.Logging, Version=2.0.0.0, Culture=ne
   utral, PublicKeyToken=3fa5b950a3ed0199' or one of its dependencies. An attempt w
   as made to load a program with an incorrect format.
   File name: 'Microsoft.Practices.EnterpriseLibrary.Logging, Version=2.0.0.0, Cult
   ure=neutral, PublicKeyToken=3fa5b950a3ed0199'
      at SAC.DataServices.CorpAction.WithholdingTax.BizSvr.Finalize()

   === Pre-bind state information ===
   LOG: User = SACCAP\JohnY
   LOG: DisplayName = Microsoft.Practices.EnterpriseLibrary.Logging, Version=2.0.0.
   0, Culture=neutral, PublicKeyToken=3fa5b950a3ed0199
    (Fully-specified)
   LOG: Appbase = file:///C:/Program Files (x86)/SAC Capital/SAC DataServices CorpA
   ction WithholdingTax BizSvr Host/
   LOG: Initial PrivatePath = NULL
   Calling assembly : SAC.DataServices.CorpAction.WithholdingTax.BizSvr, Version=1.
   1.2189.29367, Culture=neutral, PublicKeyToken=null.
   ===
   LOG: This bind starts in default load context.
   LOG: Using application configuration file: C:\Program Files (x86)\SAC Capital\SA
   C DataServices CorpAction WithholdingTax BizSvr Host\BizSvr_Host.exe.config
   LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework64\
   v2.0.50727\config\machine.config.
   LOG: Post-policy reference: Microsoft.Practices.EnterpriseLibrary.Logging, Versi
   on=2.0.0.0, Culture=neutral, PublicKeyToken=3fa5b950a3ed0199
   LOG: Attempting download of new URL file:///C:/Program Files (x86)/SAC Capital/S
   AC DataServices CorpAction WithholdingTax BizSvr Host/Microsoft.Practices.Enterp
   riseLibrary.Logging.DLL.
   ERR: Failed to complete setup of assembly (hr = 0x8007000b). Probing terminated.

 Thanks,

 John Yung

 "Ken Tucker [MVP]" <vb2ae@bellsouth.net> wrote in message news:u%23hbfRODGHA.628@TK2MSFTNGP14.phx.gbl...
 > Hi,
 >
 >         I am trying to figure out this problem.  What version of the
 > enterprise application blocks are you using?
 >
 > Ken
 > ------------------
 > "John Yung" <johny@sac.com> wrote in message
 > news:uNsXWC$CGHA.2644@TK2MSFTNGP09.phx.gbl...
 > > Ken,
 > >
 > > I compiled the code under "Any CPU" setting in VS.NET 2005 and our backend
 > > is a MS SQL 2000 with SP4 (32bit) DB. Thus, I don't think it is trying to
 > > use 64bit version of odbc. What makes you think it is trying to use a
 > > 64bit
 > > version of odbc?
 > >
 > > Thanks,
 > >
 > > John Yung
 > >
 > > "Ken Tucker [MVP]" <KenTuckerMVP@discussions.microsoft.com> wrote in
 > > message
 > > news:6CF926A3-CB35-48A8-8890-DFDE125A290E@microsoft.com...
 > >> Hi,
 > >>
 > >>         Sorry there are not any 64bit versions of the odbc drivers.  You
 > >> need to compile the application for x86 to force the computer to use the
 > >> 32bit drivers.
 > >>
 > >> I made a suggestion in the msdn product feed back center for a 64bit
 > > version
 > >> of odbc.  Please vote for it.
 > >>
 > >>
 > > http://lab.msdn.microsoft.com/productfeedback/viewfeedback.aspx?feedbackid=a533f
823-73a1-40e8-9380-d25b58ce8ae8
 > >>
 > >> Ken
 > >> http://www.vb-tips.com
 > >> ---------------------------
 > >>
 > >>
 > >>
 > >> > All,
 > >> >
 > >> > I am running a middle tier component (MarshalByRefObject) as a Windows
 > > Service (the Windows Service starts a Console Application which hosts the
 > > Middle Tier component). When the services is running under a non-64bit
 > > machine, it runs without any problems (accepts client connections and API
 > > calls).
 > >> >
 > >> > However, when running on a 64bit Win 2003 server, I am getting the the
 > > "Unable to find the requested .Net Framework Data Provider.  It may not be
 > > installed." error. I am running Microsoft Windows Services 2003 Standard
 > > x64
 > > Edition. I compiled the software using "Any CPU" setting. I am also
 > > getting
 > > the error if I start the console application directly.
 > >> >
 > >> > The following contains error information (check InnerException).
 > >> >
 > >> > Error Message:
 > >> > Exception has been thrown by the target of an invocation.
 > >> >
 > >> > Error Source:
 > >> > mscorlib:
 > >> >
 > >> > Error StackTrace:
 > >> > Server stack trace:
 > >> >    at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean
 > > publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle&
 > > ctor, Boolean& bNeedSecurityCheck)
 > >> >    at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean
 > > fillCache)
 > >> >    at System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean
 > > skipVisibilityChecks, Boolean fillCache)
 > >> >    at System.Activator.CreateInstance(Type type, Boolean nonPublic)
 > >> >    at
 > > System.Runtime.Remoting.RemotingConfigHandler.RemotingConfigInfo.StartupWell
 > > KnownObject(String asmName, String svrTypeName, String URI,
 > > WellKnownObjectMode mode, Boolean fReplace)
 > >> >    at
 > > System.Runtime.Remoting.RemotingConfigHandler.RemotingConfigInfo.StartupWell
 > > KnownObject(String URI)
 > >> >    at
 > > System.Runtime.Remoting.IdentityHolder.CasualResolveIdentity(String uri)
 > >> >    at System.Runtime.Remoting.Messaging.MethodCall.ResolveType()
 > >> >    at
 > >> > System.Runtime.Remoting.Messaging.MethodCall.ResolveMethod(Boolean
 > > bThrowIfNotResolved)
 > >> >    at System.Runtime.Remoting.Messaging.MethodCall..ctor(Object
 > > handlerObject, BinaryMethodCallMessage smuggledMsg)
 > >> >    at
 > > System.Runtime.Serialization.Formatters.Binary.BinaryMethodCall.ReadArray(Ob
 > > ject[] callA, Object handlerObject)
 > >> >    at
 > > System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(Head
 > > erHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean
 > > isCrossAppDomain, IMethodCallMessage methodCallMessage)
 > >> >    at
 > > System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S
 > > tream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean
 > > isCrossAppDomain, IMethodCallMessage methodCallMessage)
 > >> >    at
 > > System.Runtime.Remoting.Channels.CoreChannel.DeserializeBinaryRequestMessage
 > > (String objectUri, Stream inputStream, Boolean bStrictBinding,
 > > TypeFilterLevel securityLevel)
 > >> >    at
 > > System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IS
 > > erverChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders
 > > requestHeaders, Stream requestStream, IMessage& responseMsg,
 > > ITransportHeaders& responseHeaders, Stream& responseStream)
 > >> >
 > >> > Exception rethrown at [0]:
 > >> >    at
 > > System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage
 > > reqMsg, IMessage retMsg)
 > >> >    at
 > > System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData&
 > > msgData, Int32 type)
 > >> >    at SAC.DataServices.EventServer.AttachClient(EventClient
 > >> > eventClient)
 > >> >    at SAC.DataServices.EventClient.gI() in
 > > C:\CSharp\EventServerClient\EventClient.cs:line 22
 > >> >   Inner Exception:
 > >> >   Error Message:
 > >> >   Unable to find the requested .Net Framework Data Provider.  It may
 > >> > not
 > > be installed.
 > >> >
 > >> >   Error Source:
 > >> >   System.Data
 > >> >
 > >> >   Error StackTrace:
 > >> >      at System.Data.Common.DbProviderFactories.GetFactory(String
 > > providerInvariantName)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Data.DatabaseConfigurationView.GetDefa
 > > ultMapping(String name, String dbProviderName)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Data.DatabaseConfigurationView.GetProv
 > > iderMapping(String name, String dbProviderName)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Data.DatabaseCustomFactory.CreateObjec
 > > t(IBuilderContext context, String name, IConfigurationSource
 > > configurationSource, ConfigurationReflectionCache reflectionCache)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.Con
 > > figuredObjectStrategy.BuildUp(IBuilderContext context, Type t, Object
 > > existing, String id)
 > >> >      at
 > > Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(IBuilderContext
 > > context, Type typeToBuild, Object existing, String idToBuild)
 > >> >      at
 > > Microsoft.Practices.ObjectBuilder.BuilderStrategy.BuildUp(IBuilderContext
 > > context, Type typeToBuild, Object existing, String idToBuild)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.Con
 > > figurationNameMappingStrategy.BuildUp(IBuilderContext context, Type t,
 > > Object existing, String id)
 > >> >      at
 > > Microsoft.Practices.ObjectBuilder.BuilderBase`1.DoBuildUp(IReadWriteLocator
 > > locator, Type typeToBuild, String idToBuild, Object existing, PolicyList[]
 > > transientPolicies)
 > >> >      at
 > > Microsoft.Practices.ObjectBuilder.BuilderBase`1.BuildUp(IReadWriteLocator
 > > locator, Type typeToBuild, String idToBuild, Object existing, PolicyList[]
 > > transientPolicies)
 > >> >      at
 > > Microsoft.Practices.ObjectBuilder.BuilderBase`1.BuildUp[TTypeToBuild](IReadW
 > > riteLocator locator, String idToBuild, Object existing, PolicyList[]
 > > transientPolicies)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.Ent
 > > erpriseLibraryFactory.BuildUp[T](IReadWriteLocator locator,
 > > IConfigurationSource configurationSource)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.Ent
 > > erpriseLibraryFactory.BuildUp[T](IConfigurationSource configurationSource)
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.Ent
 > > erpriseLibraryFactory.BuildUp[T]()
 > >> >      at
 > > Microsoft.Practices.EnterpriseLibrary.Data.DatabaseFactory.CreateDatabase()
 > >> >      at SAC.DataServices.CorpAction.WithholdingTax.BizSvr..ctor()
 > >> >
 > >> > Please advice, Thanks,
 > >> >
 > >> > John Yung
 > >
 > >
 >
 >