System.UnauthorizedAccessException: Retrieving the COM class factory for Word Interop fails with error 80070005

Question

I have a problem with a C# ASP .NET project in Visual Studio 2008 This problem started when I reinstalled my computer with Windows 7 Ultimate (x64). To this I\'m also using

Answer 1

Go to registry HKCR>TypeLib>{00020905-0000-0000-C000-000000000046}>8.7>0, then delete the folder "win32" this is for Word COM Class error.

Go to registry HKCR>TypeLib>{00020813-0000-0000-C000-000000000046}>1.9>0, then delete the folder "win32" this is for Excel COM Class error.

Try that method that method fixed my problem.