XADM: Access Violation in the Active Directory Connector Service (Adc.exe) (292527)

WORKAROUND

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To work around this behavior, use the appropriate method.

Required Key Is Not Present

Create a registry file with the following information to rebuild the missing key:

1. Copy and paste the following text into Notepad:

      Windows Registry Editor Version 5.00    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ClientProtocols]       "ncacn_np"="rpcrt4.dll"
      "ncacn_ip_tcp"="rpcrt4.dll"
      "ncadg_ip_udp"="rpcrt4.dll"
      "ncacn_nb_tcp"="rpcrt4.dll"  
     "ncacn_http"="rpcrt4.dll"
   					

2. In the Save As dialog box, in the Save as type drop-down box, click All Files, and use the .reg extension.
3. After you create the file, place it on the server that is having the problem, and then import it into the registry by double-clicking it.

Permissions Are Incorrect

If the permissions are incorrectly set on this key, add the account under which the Active Directory Connector service starts and grant this account a minimum of read permissions.

1. To determine the account under which the Active Directory Connector service starts, open the services Microsoft Management Console (MMC), double-click the Active Directory Connector service, and then click the Log on tab.
2. After you determine the correct account to which to add permissions, start Registry Editor, and then navigate to the following key:

   HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\ClientProtocols

3. Click the ClientProtocols key, click the security pulldown, and then display the permissions on the key. Now add the permissions to the appropriate account.
4. By default, the following permissions should be set on the object:

      <DOMAIN>/Administrators          Full Control
      Authenticated Users              Read
      CREATOR OWNER                    None (Full control on subkeys only if you look in advanced permissions)
      Server Operators                 Read
      SYSTEM                           Full Control