com-interop Archives

Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error: 80040154

I developed a Windows service using C#.NET to generate PDF report. To generate PDF file I am using a third party dll. The ...

May 17, 2022
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How do I properly clean up Excel interop objects?

I’m using the Excel interop in C# (ApplicationClass) and have placed the following code in my finally clause: while (System.Runtime.InteropServices.Marshal.ReleaseComObject(excelSheet) != 0) { ...

April 22, 2022
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