Microsoft KB Archive/242050

= LogonUser Error!(rc22) The RPC Server is Unavailable with Su.exe Version 2.99 =

Article ID: 242050

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q242050



SYMPTOMS
When you use Microsoft Windows NT 4.0 Resource Kit Specified User (SU) utility version 2.99 to switch into a specified user context, you may receive the following error message:

LogonUser error! (rc22)

The RPC server is unavailable



CAUSE
This issue can occur because two versions of the SU utility are available, version 2.0 and version 2.99. Version 2.99 is included in supplement 3 of the Windows NT 4.0 Resource Kit. The configuration process is different for each version. If version 2.99 is installed over version 2.0, the user rights listed below must be removed, or the error message noted earlier is generated. Also, if version 2.0 is configured incorrectly, you do not have the privileges necessary to switch into a specified user context.



RESOLUTION
To resolve this issue, in User Manager for Domains, remove the users or groups from the following user rights, and then run the suss.exe -install command to install a new service-based component:

Act as part of the operating system

Increase Quotas

Replace a process level token

Restore files and directories

If you are upgrading over a previous installation of SU, Microsoft recommends that you revoke the privileges listed above from any users or groups that they were granted to previously. This can be accomplished in the User Manager (Usrmgr.exe or Musrmgr.exe):

 Open User Manager for Domains. On the Policies menu, click User Rights. Click to select the Show Advanced User Rights check box. Remove the users or groups from the list of accounts granted the user right:

NOTE: Perform the following procedure for the following user rights:

Act as part of the operating system

Increase Quotas

Replace a process level token

Restore files and directories

 In the Right list, select the user right. In the Grant To list, select the users or groups to remove, and click Remove.</li></ol> </li> Click OK to close User Manager for Domains.</li></ol>

NOTE: For Version 2.99, these privileges are no longer required when using SU. In order to support this, you must install a new service-based component used by SU. The service component is encapsulated in the Suss.exe executable file, and this is installed by using the following command at a command prompt:

suss.exe -install

Additional query words: nt 4.0

Keywords: kbprb KB242050

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