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Hello,
I'm developing as ASP.NET web application and I use Crystal report for visual studio 2010, I installed it on my machine.
the application work correctly on my machine, but fire an error on the server.
the error say:

Retrieving the COM class factory for component with CLSID {4DB2E2BB-78E6-4AEA-BEFB-FDAAB610FD1B} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).

this error fires when I run this page

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I tried many solutions but still the error fire

How can I solve this Error?

What version of IIS Server are you using?

Well you should reinstall the Crystal Report run time on the server again to re register the class object.

I know what the error code is from c++ programming, and it means you have to elevate your permission level, but I find it strange that you should have to do that.

So I guess if your running on IIS6, then network service has to have permission on the webform, and for IIS7+, the application pool identity. Mayne the program writes temp files that need permission to write or modify.

thank you for your reply
it works correctly
many thanks for you