Windows Embedded Standard 7 for HP Thin Clients - Administrator Guide

HP Write Filter Configuration utility
The HP Write Filter Configuration utility is a GUI that allows you to view information about and
perform common functions of EWF and FBWF.
To open the HP Write Filter Configuration utility:
▲
In the Control Panel, click HP Write Filter Configuration.
TIP: You can alternatively double-click the write filter status icon in the notification area.
The tasks you can perform in this utility include the following:
●
View information about the write filter currently in use
●
Enable either EWF or FBWF, or disable both
●
Commit cached write data from the volume overlay (EWF) or individual files (FBWF)
●
Clear the current boot command
TIP: This utility only provides this option for EWF, but the current boot command for FBWF can
be cleared using the status icon.
●
Set the amount of memory to allocate for the cache (FBWF only)
●
Set the percentage of cache use at which warning and critical messages are displayed and the
delay for an automatic thin client restart when the critical state is reached (FBWF only)
●
Edit the exclusion list, which specifies files and folders that will be ignored (FBWF only)
Command line
The following table describes common commands that can be issued via the Command Prompt.
EWF syntax example FBWF syntax example Description
ewfmgr -disable fbwfmgr /disable
Disables the write filter on the next
thin client restart.
ewfmgr -enable fbwfmgr /enable
Enables the write filter on the next
thin client restart.
ewfmgr c: -commit fbwfmgr /commit c: \Folder\File.txt
EWF: Commits the volume overlay
on the next thin client restart.
FBWF: Commits the specified file
immediately.
ewfmgr c: -nocmd
n/a Clears the current boot command.
n/a
fbwfmgr /restore c: \Folder\File.txt
Restores the specified file.
n/a
fbwfmgr /addexclusion c: \Folder\File.txt
Adds the specified file to the
exclusion list.
n/a
fbwfmgr /setthreshold <size>
Sets the maximum size of the
cache threshold in MB after the
next thin client restart.
For more information and a full list of commands, go to the following:
▲
EWF:
http://msdn.microsoft.com/en-US/library/ff794092(v=winembedded.60).aspx
FBWF:
http://msdn.microsoft.com/en-US/library/ff794500(v=winembedded.60).aspx
Write filter management overview 5