NoteHKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0 | 1 | 1 |
Determines whether the opportunistic-locking (oplock) performance enhancement is enabled. If enabled, the redirector requests an opportunistic lock on any file opened in "Deny None" mode. As a result, the server performs automatic read-ahead and write-behind caching on behalf of the redirector.
| Value | Meaning |
|---|---|
| 0 | Disables opportunistic locking. |
| 1 | Enables opportunistic locking. |
Note
Opportunistic locks improve performance significantly. Do not change the value of this entry unless you are testing the system.