Article ID: 830914
Article Last Modified on 1/19/2007
APPLIES TO
- Microsoft Office Outlook 2007
- Microsoft Office Outlook 2003
SYMPTOMS
When you try to start Microsoft Office Outlook 2007 or Microsoft Office Outlook 2003, and you have your e-mail account setup for a Microsoft Exchange Server, you may receive the following error message:
For more information, see Help and Support Center at
CAUSE
This behavior may occur when any of the following registry values are missing in the Microsoft Windows Registry.
Value Name | Value Data |
ncacn_np | Rpcrt4.dll |
ncacn_ip_tcp | Rpcrt4.dll |
ncadg_ip_udp | Rpcrt4.dll |
ncacn_http | Rpcrt4.dll |
RESOLUTION
To resolve this problem, follow these steps:
- Quit all Microsoft Windows programs.
- Click Start, and then click Run.
- In the Open box, type regedit, and then click OK.
- Expand the Registry to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ClientProtocols
- If any of the Registry values that are listed in the "Cause" section of this article are missing from the ClientProtocols key, follow these steps:
- Right-click ClientProtocols, point to New, and then click String Value.
- Type the Value Name of the entry that is missing, and then press ENTER.
- Right-click the Value Name that you typed in step b, and then click Modify.
- Type the appropriate Value Data for the Value Name that you typed in step b, and then click OK.
- Repeat step 5 for each missing value in the ClientProtocols key.
Note Microsoft Outlook cannot connect to a Microsoft Exchange server if the registry entries that were previously mentioned are missing in the Windows Registry.
Additional query words: OL2007 OL2003
Keywords: kbstartprogram kbemail kbpending kberrmsg kbprb KB830914