How to reinstall fax component on SBS. The detail steps:

A. Rename the keys and files below to *.old

1. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fax
2. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Fax 
3. C:\Program Files\Microsoft Windows Small Business Server\fax
4. The ''SBSMIS-FAX.log'' file under ''C:\Program Files\Microsoft Integration\Windows Small Business Server 2003\Logs''.
5. The ''SBSMSI-faxcfg.log'' file under ''C:\Program Files\Microsoft Integration\Windows Small Business Server 2003\Logs''.
6. The ''faxsetup.log'' file under ''C:\WINDOWS\''.

B. Delete the following registry keys:

HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/Telephony/Country List
HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/Telephony/Locations registry Keys

C. Access Add/Remove Programs, Add/Remove Windows Components, uncheck ''Fax Services'' to uninstall it.

D. Once it is uninstalled, access Add/Remove Programs to reinstall it.

E. Then, access ''Add/Remove Programs again'', this time, we will click ''Change/Remove'' on the ''Windows Small Business Server 2003'' item:

1. Click ''Next'' on the ''Microsoft Windows Small Business Server Setup'' page.
2. Click ''Next'' on the ''Windows Configuration'' page.

3. Now, in the ''Component Selection'' page, choose ''Remove' before the ''Fax Services'' item.
4. Click ''Next'', and then click ''Next'' again to confirm ''Component Summary''. You will be prompted to insert the SBS setup Disc 1. and then follow the guide the finish the reinstallation.

F. Once the removal process is completed, access ''Windows Small Business Server setup'' again in ''Add/Remove Programs'', proceed to the ''Component Selection'' page, and then choose ''Install'' for the ''Fax Services'' item to reinstall fax service.