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While dispose the com+, encounter error: failed due to the following error: Old format or invalid ty

Posted By:      Posted Date: August 28, 2010    Points: 0   Category :.NET Framework
 
I have web service to invoke com+ to do business layer checking. recently, the application encountered intermittently the following error while tried to dispose the com+ instance. Appreciate anyone who help for this. thanks!   System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'System.IDisposable'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{805D7A98-D4AF-3F0F-967F-E5CF45312D2C}' failed due to the following error: Old format or invalid type library. (Exception from HRESULT: 0x80028019 (TYPE_E_UNSUPFORMAT)).   Server stack trace:    at System.IDisposable.Dispose()    at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)    at System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)    at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)   Exception rethrown at [0]:    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage


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