Developing Web Applications
Developing Web Applications |
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Sometimes the Server.CreateObject method fails and produces an “ASP 0177: Server.CreateObject Failed” error. This can happen even if the component works fine in Visual Basic on the same computer or while using ASP on other computers.
One likely cause for this behavior is that the authenticated user does not have permission to invoke the COM object. In the simplest scenario, the authenticated user doesn’t have access to the component DLL or executable. In many cases, however, the component depends on other DLLs that the authenticated user does not have permission to access. Usually, a majority of users access a site anonymously, using the IUSR_computername account.
To verify that this is a permissions problem, try invoking the component from another tool such as Visual Basic. This approach verifies that the component is registered properly on the server. If the component cannot be created from Visual Basic, you are probably not dealing with a permissions problem. (The component might need to be registered.)
If you believe you are dealing with a permissions problem, check permissions on the component and on any dependent files, such as other DLLs. If you still are unable to track down the problem, you may need to systematically search permissions.