Not enough server storage is available to process this command

I have seen this when Norton Antivirus has just been installed.

When when you try to access shares on a machine from a client you might receive "Not enough server storage is available to process this command." error. You may also come across this message and Event ID: 2011 in Event Viewer after you install Norton Antivirus for Windows (which seems to be the commonest reason why people see this message).

Solving this problem requires a Registry edit:

Click Start, and then click Run.
Type regedit, and then click OK.
Navigate to the following registry key:
In the right pane, double-click the IRPStackSize value.
Important: If the IRPStackSize value does not already exist, you will need to create it:
- In the Parameters folder of the registry, right-click the right pane.
- Point to New, and then click DWord Value.
- Type IRPStackSize.

Important: Type "IRPStackSize" exactly as it is displayed because the value name is case-sensitive.

Change the Base to decimal.
In the Value Data box, type a value that is larger than the value that is listed.
If you created the IRPStackSize value using the procedure described in step 4, the default value is 15. It is recommended that you increase the value by 3. Therefore, if the previous value was 11, type 14, and then click OK.
Close the Registry Editor.
Restart the computer.

If the problem persists after you complete the preceding procedure, try to increase the value of IRPStackSize even more up to a maximum value for Windows 2000/XP of 50 (0x32 hex).