BufFilesDenyWrite

HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters

Data type Range Default value
REG_DWORD 0 | 1 1

Description

Determines whether the redirector saves in a memory cache files that are opened with only FILE_SHARE_READ sharing access. Typically, files opened with FILE_SHARE_READ specified cannot be cached because other processes might be reading the file. This optimization prevents other processes from writing to the file. Set this value to 0 to preserve the strict semantics of the specified sharing modes.

Value Meaning
0 Shared files cannot be cached.
1 Permits the Workstation service to cache shared files.