How to resolve the error 0x8000401a: retrieving the COM class factory for component with CLSID in ASP.NET with C#?

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I am getting the error "0x8000401A": Retrieving the COM class factory for component with CLSID at times.

I am trying to call web method where values from a data set are exported to the excel sheet. I am exporting the same using excel object.The permission for bulk excel file processing was done and mentioned issue was resolved.But the same error came up later after a while.

What I have tried:

The permission for bulk excel file processing was done and mentioned issue was resolved.But the same error came up later after a while.

Posted 29-Aug-16 20:27pm

Ema112

Updated 29-Aug-16 22:33pm

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F-ES Sitecore 30-Aug-16 4:35am

As mentioned, Excel automation is not supported from asp.net, you'll need to use a method that is like the XML SDK, Excel ODBC driver, EPPlus, Aspose etc. Google those for code samples etc.

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Bernhard Hiller · Answer 1 · 2016-08-29T22:33:00

Solution 1

Do not use Excel with ASP.Net. Microsoft officially stated that they do NOT support that.

Posted 29-Aug-16 22:33pm

Bernhard Hiller

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Ema112 30-Aug-16 7:42am

Even if so how this issue can be resolved. We are calling web service in a remote server. What I found out if the user in domain account user having permission is logged in the same server such an issue is not there. Else the same error comes.