>>>>Yes, it can cause problems even as a workstation for local data. I just set OpLocksDisabled to 1 and EnableOpLocs to 0
>>>>
>>>>Jaime
>>>
>>>Jaime,
>>>
>>>In the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MRxSmb\Parameters I have
>>>Default REG_SZ (Value not set)
>>>CscEnabled REG_DWORD 0x00000001(1)
>>>
>>>Is it correct?
>>>
>>>In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters I see lots of entries. EnableForcedLogOff is 1. EnableSecuritySignature is 0. There is no EnableOplocks entry in this list.
>>
>>Yes, it's correct ( for the MRxSMb Parameters entry ). Just right-click in the right area, choose New->DWord, name it OplocksDisabled, and set it's value to 1. You can do this also for the other entry in lanmanserver parameters, although MS states it is not needed...
>>Jaime
>
>I see. I'm a little bit afraid. If something goes wrong, would I be able to just delete this key and everything be back to normal or I should try other precautions?

Well, you're asking someone that likes to cool the cpu at -50 degrees and likes to overclock it until windows crashes, but no kidding, i never had any problem with those registry settings ( did it already on over 50 computers )...
You have to restart for those to take effect by the way...
Jaime