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Registry key denied register .NET assembly

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When you register a .NET assembly for COM Interop, receive the following error message:

"COM Interop registration failed. Access to the registry key denied "

NOTE: The error message may contain the key name in some instances. This error can occur maybe you build an assembly that registers itself for COM Interop or use the Assembly Registration utility (Regasm.exe) to  register the assembly for COM Interop. The error may occur even if the person who performs the operation is an Administrator on the system.


Error Caused

This problem occurs because the current user does not have the correct permissions for the following key in the Windows registry:

HKEY_CLASSES_ROOT\Component Categories\{62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}



Fixed the registry problem

Important: Serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. You'd better see how to back up and restore the registry and why should we know about registry help page first.

Resolve this problem, following steps:

1. Log on to the computer with an account that is a member of the Administrators group on the local computer.
    
2. Click Start, click Run, and then type regedt32 to start Registry Editor.
   
   NOTE: On a computer that is running Windows NT 4.0 or Windows 2000, you must run Regedt32.exe to review and to set permissions in the Windows registry. On a computer that is running Windows XP, you can run either Regedt32.exe or Regedit.exe.
    
3. Locate and then click the following subkey:
   HKEY_CLASSES_ROOT\Component Categories\{62C8FE65-4EBB-45e7-B440-6E39B2CDBF29}
    
4. If your computer is running Windows NT 4.0 or Windows 2000, click Permissions on the Security menu.
   
   If your computer is running Windows XP, right-click the key, and then click Permissions.
    
5. Click Advanced.
    
6. Click to select the Inherit Permission from Parent Object check box, and then click Apply.
    
7. Verify that all of the users or the groups who will be registering or using .NET assemblies through COM Interop have the following advanced permissions:
   
   Query Value.
   Enumerate Subkeys.
   Notify.
   Read Control.
   
   To verify the permissions, double-click the user or the group. If any of the users or the groups do not have any of these permissions, click to select the Allow check box for the missing permissions.
   
   To add additional users or groups to the list, click Add in the Advanced Settings dialog box. Typically, as long as the Users, the Power Users, and the Administrators in the group are present with the correct permissions, everything works correctly.
    
8. Close Registry Editor.
    
9. Register the .NET assembly for COM Interop by using Microsoft Visual Studio .NET or the Regasm.exe utility.
    

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Microsoft help links for windows denied error

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• An "ERROR_ACCESS_DENIED" error occurs when you try to write to a file that is in a network shared folder
   
• You receive an "Access is denied" error message in Exchange Server 2003 or a "Setup failed while installing sub-component Doctor Watson.NET" error message in Exchange 2000 Server
   
• You may receive an “Access denied” error message when you try to join a client computer to a Microsoft Windows Small Business Server 2003 domain by using the ConnectComputer Wizard
   
• You may receive an "Access is denied" error message you use the WWW-Authenticate: Negotiate method of HTTP authentication to connect to a Web server
   
• You may receive an "Access is denied" error message when a query calls an extended stored procedure after you upgrade from SQL Server 2000 to SQL Server 2000 Service Pack 4
   
• "Access Is denied" Error Message When You Try to Install Windows XP Service Pack 1
   
• You may receive an "Access is denied" error message you use the WWW-Authenticate: Negotiate method of HTTP authentication to connect to a Web server

 

• If you still haven't fixed the windows registry problem:
  
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That we get the information help you to fix Access to the Registry Key Denied error code, hope it's useful, if you have other problems, you can contact the microsoft support for further helps.

 

 

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