Specifications

46
Enhanced Write Filter Command Line Control
There are several Start | Run command lines you can use to control the Enhanced Write
Filter.
Note
Command line arguments cannot be combined.
Caution
Thin client administrators should use NT file security to prevent undesired
usage of these commands.
Use the following guidelines for the Start | Run command line option for the Enhanced
Write Filter:
• ewfmgr.exe C:
With no arguments - Opens the Enhanced Write Filter Control dialog box. For a
description of the dialog box, refer to “Enhanced Write Filter Control Dialog Box” on
page 48.
• ewfmgr.exe C: -commit
Commits changes and disables the Enhanced Write Filter until the next system start.
The Enhanced Write Filter status icon is yellow until the next system start.
• ewfmgr.exe C: -disable
Flushes the cache and disables the Enhanced Write Filter; the Enhanced Write Filter
remains disabled after the system start and must be enabled manually either through
the Enhanced Write Filter Control dialog box or through the command line. The
Enhanced Write Filter status icon remains red while disabled.
• ewfmgr.exe C: -enable
Enhanced Write Filter enabled after the next system start. After enabling the Enhanced
Write Filter you must restart. You do not need to flush the cache first since the
Enhanced Write Filter is currently disabled. The Enhanced Write Filter status icon is
green when the Enhanced Write Filter is enabled.
Note
The Enhanced Write Filter status icon on the taskbar system tray turns red
immediately when the cache flush operation is started, although the flush
action can take up to several minutes to complete.
Caution
Do not attempt to flush the cache while the cache is currently being flushed.
If you open an MS-DOS Prompt window (by entering command in the Run text box),
append “.exe” to the ewfmgr command:
ewfmgr.exe C:, ewfmgr.exe C: -commit, ewfmgr.exe C: -disable, and
ewfmgr.exe C: -enable.