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Enabling and Disabling the File Based Write Filter Using the Desktop Icons
Setting the File Based Write Filter Controls
Changing Passwords with the File Based Write Filter
On Microsoft Windows based machines, account passwords are regularly changed with the domain controller for security purposes.
The same password process is applicable for a thin client if the thin client is a member of such a domain. With the File Based Write
Filter enabled, a thin client will successfully make this password change with the domain controller. However, since the File Based
Write Filter is enabled, the next time the thin client is booted it will not retain the new password. In such cases, you can use the
following options:
Disable the machine account password change on the thin client by setting the DisablePasswordChange registry entry to a
value of 1.
Disable the machine account password change on the Windows based server by using the Microsoft documentation for the
operating system.
For example, on Windows 2003 Server, set the RefusePasswordChange registry entry to a value of 1 on all domain controllers in
the domain instead of on all workstations. Clients will still attempt to change their passwords every 30 days, but the change will
be rejected by the server.
NOTE: If you set the RefusePasswordChange registry entry in the Windows 2003 Domain Controller to a value of 1, the
replication traffic will stop, but not the thin client traffic. If you also set the DisablePasswordChange registry entry to a
value of 1 in the thin client, both thin client and replication traffic will stop.
Running File Based Write Filter Command–Line Options
There are several command lines you can use to control the File Based Write Filter. Command–line arguments cannot be combined.
Use the following guidelines for the command–line option for the File Based Write Filter. You can also use the commands if you
open Command Prompt window by entering command in the Run box:
fbwfmgr
With no arguments — Displays the File Based Write Filter configuration for the current session and the next.
fbwfmgr /enable
Enables the File Based Write Filter after the next system restart. The File Based Write Filter status icon is green when the File
Based Write Filter is enabled.
fbwfmgr /disable
Disables the File Based Write Filter after the next system restart. The File Based Write Filter status icon remains red while
disabled.
fbwfmgr /commit C: <file_path>
Commits the changes made to the file to the underlying media. Note that there is a single space between volume name and
file_path. The file path must be an absolute path starting with \.
For example, to commit a file C:\Program Files\temp.txt the command would be fbwfmgr /commit C: \Program Files\temp.txt.
fbwfmgr /restore C: <file_path>
Discards the changes made to the file, that is, it restores the file to its original contents from the underlying media. The file path
must be an absolute path starting with \. If the file was deleted, it will be recovered.
fbwfmgr /addexclusion C: <file_or_dir_path>
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