Parece que hay un problema en la instalación de WSUS en SBS 2003. En el mensaje de Tim Elhajj(MSFT) en microsoft.public.windows.server.sbs, se ofrece un workaround para esta pega.
Os la reproduzco:
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BACKGROUND: Here is a description of the problem with OEM installation of
SBS 2003:
During the SBS OEM mini setup the domain name is entered by the customer and
added to the AD. This property is set in the AD as lowercase. During WSUS
installation, the instance of WMSDE is set to case sensitive. During the
setup process an attempt is made to give access to a security account which
fails because it can't find the account in the AD. The check is doing a case
sensitive check (since the instance of WMSDE is set to case sensitive).
Since the AD has the domain in lower case and the process is looking for an
upper case entry, it fails. Example: Setup process is looking for
SJMPC\IWAM_DELL-OFV7446Y6N , but the AD shows sjmpc\IWAM_DELL-OFV7446Y6N ,
since the instance is case sensitive, the install fails.
WORKAROUND: To work around this problem, use the following special
procedures for downloading the WSUS installer file, extracting WMSDE from
the WSUS installer file, installing WMSDE from the command line, and then
installing WSUS.
To download the WSUS installer to your server
1. On the computer running Windows SBS, create a folder named WSUSFiles on
the local hard disk.
2. Read how to register to download the latest version of WSUSSetup.exe
from the Microsoft Web site at http://go.microsoft.com/fwlink/?LinkId=51144.
3. Answer all of the required questions on the Windows Server Update
Services Registration Wizard Web page, and then click Continue.
4. When the file download security warning appears, click Save.
5. In the Save As dialog box, browse to the WSUSFiles folder, and then
click Save.
To prepare the WSUS database
1. Extract the WSUS Setup files.
a. Click Start, click Run, and then type C:\WSUSFiles\WSUSSetup.exe /X,
where C: is the letter of your local hard disk.
b. When prompted for a location to extract the files, select the WSUSFiles
folder.
2. Type the following command, where C: is the letter of your local hard
disk, and then press Enter:
CD C:\WSUSFiles\wmsde
3. Type the following command with consideration to the points listed
below, and then press Enter:
Sqlrun03.msi InstanceName=WSUS BlankSAPwd=1 Reboot=ReallySuppress
DisableNetworkProtocols=1 DisableAgentStartup=1 DisableThrottle=1
* If you want to specify the drive letter where the database instance will
be located, you must add the DataDir="Path" argument to the command line,
where Path is the path to the target directory in the file system.
* The command line implies that your WSUS database will have a blank
password. However, during the actual installation of WSUS, a randomly
generated password is set. You do not need to specify a password.
* The command line is not case sensitive.
4. Start the MSSQL$WSUS service. To do this, click Start, click Run, and
then type Services.msc. Right-click MSSQL$WSUS, and then click Start. If the
service is not listed, rerun the command in Step 4 of this procedure.
To install WSUS
1. Click Start, click Run, and then type C:\WSUSFiles\WSUSSetup.exe, where
C: is the letter of your local hard disk.
2. On the Welcome page of the wizard, click Next.
3. Read the terms of the license agreement carefully, click I accept the
terms of the License Agreement, and then click Next.
4. On the Select Update Source page, you can specify where the client
computers get updates. If you select the Store updates locally check box,
updates are stored on the server and you can select a location in the file
system to store updates. If you do not store updates locally, the client
computers connect to Microsoft Update to get approved updates. Keep the
default option to store updates locally, either choose a location to store
updates or accept the default location, and then click Next.
5. On the Database Options page, keep the default options, and then click
Next. Because you installed WMSDE in the previous procedure, changing the
options on this page of the wizard has no effect.
6. On the Web Site Selection page, specify a Web site for WSUS to use.
This page also lists two important URLs based on this selection: the URL to
which you will point WSUS client computers to get updates, and the URL for
the WSUS console where you can configure WSUS. Keep the default option and
click Next.
7. On the Mirror Update Settings page, keep the default option and click
Next. If you want to use multiple WSUS servers in a central management
topology, see "Deploying Microsoft Windows Server Update Services."
8. On the Ready to Install Windows Server Update Services page, review the
selections, and then click Next.
9. If the final page of the wizard confirms that WSUS installation was
successfully completed, click Finish.
Note: After you install WSUS, you can delete the C:\WSUSFiles folder.
However, do not delete the C:\WSUS folder, which is created when WSUS is
installed.
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Installing security update MS05-019 or Windows Server 2003 Service Pack 1
may cause network connectivity between clients and servers to fail
http://support.microsoft.com/default.aspx?scid=kb;en-us;898060Diagnoses and Treatment of Black Hole Routers
http://support.microsoft.com/default.aspx?scid=kb;en-us;159211Recommended TCP/IP settings for WAN links with a MTU size of less than 576
http://support.microsoft.com/default.aspx?scid=kb;en-us;900926