Exception from HRESULT: 0x80070005 (E_ACCESSDENIED) - Error : 80070005 Access is denied.

An exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll but was not handled in user code

Additional information: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).

This Issue Is Occurring –

When I tried to download excel file on cloud server! I debugging this code on the cloud server and find out, error is occurring at the time of creation of Microsoft.Office.Interop.Excel.Application object i.e.

using Excel = Microsoft.Office.Interop.Excel;
Excel.Application excel = new Excel.Application();

This is a COM permissions problem! I used forms authentication!

Firstly search Desktop folder in the below path – CREATE Desktop folder, if not exist!

For 64-bit (x64) - create this folder: C:\Windows\SysWOW64\config\systemprofile\Desktop

For 32-bit (x86) - create this folder: C:\Windows\System32\config\systemprofile\Desktop

Otherwise try to resolve below follow these steps - It might help you!

Solutions –

1. Start => Run => dcomcnfg

2. Open to Component Services => Component Services => Computers => My Computer => DCOM Config

3. Find “Microsoft Excel Application”

4. Right click => Properties

5. Go to “Security Tab” and Edit the “Customize” radio buttons so that <Machine_name >/IIS_IUSRS could have rights for launch and access.

6. Go to “Identity Tab” and choose “The interactive user”

7. Apply changes and try again

References –

https://waheedrous.wordpress.com/2014/01/26/error-office-interop-assemblies/

https://social.msdn.microsoft.com/Forums/en-US/cb36a6df-cecb-4d03-afc6-e25c376a6a9b/missing-microsoftofficeinterop-namespace?forum=Vsexpressvb

https://social.msdn.microsoft.com/Forums/office/en-US/bd596090-a59f-49f8-93a6-4c100413c54c/systemunauthorizedaccessexception-retrieving-the-com-class-factory-for-component-with-clsid?forum=exceldev

https://stackoverflow.com/questions/1491123/system-unauthorizedaccessexception-retrieving-the-com-class-factory-for-word-in

I hope you are enjoying with this post! Please share with you friends. Thank you!!

By Anil Singh | Rating of this article (*****)

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