![Intermittent "Unable to cast COM object of type ... The RPC server is unavailable ... 0x800706BA" error when using Excel functions Intermittent "Unable to cast COM object of type ... The RPC server is unavailable ... 0x800706BA" error when using Excel functions](https://www.ibm.com/support/pages/system/files/support/swg/cogtech.nsf/0/c80e20d95d6557e985257ef90053839b/Symptom/0.84.gif)
Intermittent "Unable to cast COM object of type ... The RPC server is unavailable ... 0x800706BA" error when using Excel functions
Unable to cast COM object of type 'System.__ComObject' to interface type 'LFSO80Lib.LFDocument'. - Laserfiche Answers
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Unable to cast COM object of type (No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE))) - Stack Overflow
VS 2010 [RESOLVED] Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass'-VBForums
![Unable to cast COM object of type 'Microsoft.Office.Interop.Word.ApplicationClass' - RocketDocs Help Unable to cast COM object of type 'Microsoft.Office.Interop.Word.ApplicationClass' - RocketDocs Help](https://tw-desk-files.teamwork.com/i/482835/attachment-inline/174126.20181226182128997.174126.201812261821289971UYNJ.png)
Unable to cast COM object of type 'Microsoft.Office.Interop.Word.ApplicationClass' - RocketDocs Help
![Unable to cast COM object of type 'System.__ComObject' to interface type 'EnvDTE.Project' - Stack Overflow Unable to cast COM object of type 'System.__ComObject' to interface type 'EnvDTE.Project' - Stack Overflow](https://i.stack.imgur.com/NlMBB.png)
Unable to cast COM object of type 'System.__ComObject' to interface type 'EnvDTE.Project' - Stack Overflow
![unable to cast COM object of type 'microsoft.Office.Interop.Excel.ApplicationClass' to 'microsoft.Office.Interop.Excel.Application'" - Stack Overflow unable to cast COM object of type 'microsoft.Office.Interop.Excel.ApplicationClass' to 'microsoft.Office.Interop.Excel.Application'" - Stack Overflow](https://i.stack.imgur.com/8Mymj.jpg)
unable to cast COM object of type 'microsoft.Office.Interop.Excel.ApplicationClass' to 'microsoft.Office.Interop.Excel.Application'" - Stack Overflow
![Unable to cast COM object of type 'CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass' - Stack Overflow Unable to cast COM object of type 'CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass' - Stack Overflow](https://i.stack.imgur.com/iwWM5.png)
Unable to cast COM object of type 'CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass' - Stack Overflow
![Crystal Reports Unable to Cast COM Object of Type 'ReportSourceClass' to Interface Type 'ISCRReportSource' - Tech Journey Crystal Reports Unable to Cast COM Object of Type 'ReportSourceClass' to Interface Type 'ISCRReportSource' - Tech Journey](https://cdn.techjourney.net/2019/03/crystal-reports-cast-pdf-error.png)
Crystal Reports Unable to Cast COM Object of Type 'ReportSourceClass' to Interface Type 'ISCRReportSource' - Tech Journey
![已解决】C#程序excel处理出错:Additional information: Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass' to interface type 'Microsoft.Office.Interop.Excel._Application' – 在路上 已解决】C#程序excel处理出错:Additional information: Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass' to interface type 'Microsoft.Office.Interop.Excel._Application' – 在路上](https://www.crifan.com/files/pic/uploads/2013/12/Unable-to-cast-COM-object-of-type-Microsoft.Office.Interop.Excel_.ApplicationClass-to-interface-t.png)
已解决】C#程序excel处理出错:Additional information: Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass' to interface type 'Microsoft.Office.Interop.Excel._Application' – 在路上
![vb.net & office: Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass' - Stack Overflow vb.net & office: Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass' - Stack Overflow](https://i.stack.imgur.com/6hfyX.png)