Uninstalled Modem Remains in Fax Server Registry Settings

• Microsoft BackOffice Small Business Server versions 4.0, 4.0a, 4.5

SYMPTOMS

Whenever a modem is added to Small Business Server (SBS), an entry for the modem is added under the fax server registry settings. When a modem is removed, however, the entry remains in the registry. This may cause some unintended interruptions in the fax service, or various other symptoms.

RESOLUTION

To correct this problem, use the following procedure to delete the unneeded entry:

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

1. Click Start, point to Settings, click Control Panel, and then double- click Services.



2. Stop the Microsoft Fax Service.



3. Run Registry Editor (Regedt32.exe)



4. Go to the following key:
   
   

   
         HKEY_LOCAL_MACHINE\Software\Microsoft\Fax\Devices\  

   
   At this time, you may want to save the key in case an entry needs to be restored.



5. There will be a key for each installed and uninstalled modem. The keys will have been named using a random, 8-digit number. Delete the keys that are not needed.



6. Restart the Microsoft Fax Service.

MORE INFORMATION

If you are unable to determine which modem keys are needed and which can be deleted from the registry, follow this procedure.

1. Before stopping the Microsoft Fax Service, click Start, point to Settings, click Control Panel, and then double-click Fax Server.



2. Click the Receive tab. Select an installed modem and change one of the settings (CSID, Rings before answer, routing options, and so on). Repeat for all installed modems.



3. In the registry, look under the parameters for each modem listed. The ones that are currently installed will have the new values, while the unneeded modem entries will have the old values.



4. After you restart the Microsoft Fax Service, reset the changed values back to the original settings.

Keywords : kbenv kbhw kbprint
Version : winnt:4.0,4.0a,4.5
Platform : winnt
Issue type : kbprb