Although the Windows Server service is self-tuning, it can be also be configured manually through Control Panel Service. Normally, the server configuration parameters are auto-configured (calculated and set) each time you boot Windows. However, if you run NET CONFIG SERVER in conjunction with the /AUTODISCONNECT, /SERVCOMMENT OR /HIDDEN switches the current values for the automatically tuned parameters are displayed and written to the registry. Once these parameters are written to the registry, you cannot tune the Server service using Control Panel Networks.

If you add or remove system memory, or change the server size setting minimize/balance/maximize), Windows does not automatically tune the Server service for your new configuration. For example, if you run NET CONFIG SRV /SRVCOMMENT, and then add more memory to the computer, Windows does not increase the calculated value of autotuned entries.

Typing NET CONFIG SERVER at the cmd prompt without additional parameters leaves auto tuning intact while displaying useful configuration information about the server.

The Server service supports information levels that let you set each parameter individually. For example, the command NET CONFIG SRV /HIDDEN uses information level 1016 to set just the hidden parameter. However, NET.EXE queries and sets information levels 102 (hidden, comment, users, and disc parameters) and 502. As a result, all parameters in the information level get permanently set in the Registry. SRVMGR.EXE and the Control Panel Server query and set only level 102 (not level 502) when you change the server comment.

Administrators wishing to hide Windows computers from the browse list or change the autodisconnect value should make those specific changes using REGEDT32.EXE instead of the command line equivalents discussed above. The server comment can be edited using the description field of the Control Panel Server applet or Server Manager.

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry,

To restore the LAN Manager Server parameters to the defaults, or to reconfigure Windows so that it auto-configures the Server service:

1. Run Registry Editor (REGEDT32.EXE).
2. From the HKEY_LOCAL_MACHINE subtree, go to the following key:
   \SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
3. Remove all entries except the following:
   EnableSharedNetDrives
   Lmannounce
   NullSessionPipes
   NullSessionShares
   Size
4. Quit Registry Editor and restart Windows.

Manual steps to back up the registry in in Windows XP

1. Click Start, click Run, type %SystemRoot%\system32\restore\rstrui.exe, and then click OK.
2. On the Welcome to System Restore page, click Create a restore point, and then clickNext .
3. On the Create a Restore Point page, type a name for the restore point and then clickCreate
4. After the restore point has been created, click Close.

Note If System Restore is turned off, you receive a message that asks whether you want to turn on System Restore now. Click Yes. Then, in the System Properties dialog box, click to clear the Turn off System Restore check box, click OK, and then repeat this step.

Manual steps to restore the registry in Windows XP

Use System Restore to undo registry changes in in Windows XP

1. Click Start, click Run, type %SystemRoot%\System32\Restore\Rstrui.exe, and then click OK.
2. On the Welcome to System Restore page, click Restore my computer to an earlier time (if it is not already selected), and then click Next .
3. On the Select a Restore Point page, click the system checkpoint. In the On this list select the restore point area, click an entry that is named “Guided Help (Registry Backup),” and then click Next. If a System Restore message appears that lists configuration changes that System Restore will make, click OK.
4. On the Confirm Restore Point Selection page, click Next. System Restore restores the previous Windows XP configuration and then restarts the computer.
5. Log on to the computer. When the System Restore confirmation page appears, clickOK..

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