Wyse Technology WintermTM 9000 User Manual

• Select the Enable Write Filter check box to set the write filter to be enabled after 

reboot (the WFilterPartition1 key value is set to the platform default). The write filter 
status icon in the task bar system tray is green when the write filter is enabled.

The drop-down list box located just below the Display Write Filter Partition 
Information button should never be used for any reason and has no value to 
the user.

• Click the Flush Cache button to flush the cache and turn off the write filter; the write 

filter status icon turns red and the write filter remains off until the next boot.

• When the cache is flushed by clicking the Flush Cache button or selecting the Disable 

Write Filter check box, all controls are disabled (grayed-out) until the flush completes.

• Once the cache has been flushed, clicking on the Flush Cache button causes the 

following message to display:

DeviceIoControl IOCTL_WFILTER_MODE_QUERY failed

• Click on the Query Cache button to display a cache status report.

NetXClean keeps extraneous information from being stored in flash memory. NetXClean 
is a service that runs constantly in the background and operates only on the flash memory. 
Cleanup is triggered on either service startup or user logoff. 

NetXClean performs the cleanup invisibly and no user input is necessary.

If a flush of the write filter cache puts junk in flash directories that must be kept clean, or 
allows junk to continue being written to flash after the write filter cache is flushed (until a 
reboot occurs), NetXClean prevents garbage files from building up and filling the free 
space in the flash. This is particularly important when multiple users have logon rights to a 
terminal because memory space can be used up quickly by locally stored profiles and 
temporary caching of information.

NetXClean performs the following TweakUI functions:
• Clears Run history at log on 
• Clears Document history at log on 
• Clears Find Files history at log on 
• Clears Find Computer history at log on 
• Clears Internet Explorer history at log on 
• Clears Last User at log on 
• Clears Selected Items Now 

NetXClean purges certain directories, files, and profiles. It uses a configuration file to 
determine which directories and files to purge, and which profiles to not purge. The 
selections are made by the manufacturer and should not be changed without 
manufacturer supervision.