oportunistic locking disabled

recently oportunistic locking became disabled -  windows server 2008
I suspect through a windows update.
does not seem to be a way of enabling it again

anyone else experienced this and is there a registry key or tool to reverse this?
abelh2011Asked:
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Felix LevenSenior System and DatabaseadministratorCommented:
You can also deny the granting of opportunistic locks by setting the following registry entry to 0:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
EnableOplocks REG_DWORD 0 or 1
Default: 1 (enabled)
Note The EnableOplocks entry configures Windows-based servers to allow or to deny opportunistic locks on local files. These servers include workstations that share files.

OR

In later versions of Windows, you can disable opportunistic locking by setting the following registry entry to 1:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MRXSmb\Parameters\
OplocksDisabled REG_DWORD 0 or 1
Default: 0 (not disabled)

Full:
http://support.microsoft.com/kb/296264
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abelh2011Author Commented:
HI
thank you very much for responding
yes I found that article at microsoft too -  it was aimed at windows 2003. -

I will look at the windows2008 server asap -  Wondered whether anyone else had had thisproblem with a windows update removing this ability
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Felix LevenSenior System and DatabaseadministratorCommented:
i would try to search my wsus server for hints regarding this
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abelh2011Author Commented:
this solution confirmed my search of microsoft knowledgebase -

It was a second opinion - but nevertheless happy with the answer
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