Moxa V2426-T-XPE [17/45] V2416 w7e moxa software package

V2416 / W7E Moxa Software Package

3-6

File-Based Write Filter

Overview

This section describes how to use the File-Based Writer Filter (FBWF). Please note that when Enhance Writer

Filter is enabled, the File-Based Writer Filter function will not work.

According to Microsoft:

File-Based Write Filter (FBWF) allows the Windows Embedded platform to maintain the

appearance of read and write access on write-sensitive or read-only storage. FBWF

makes read and write access transparent to applications.

Writing to storage media may be undesirable or impossible in embedded devices. FBWF

redirects all writes targeted for protected volumes to a RAM cache called an overlay. Used

in this context, an overlay is similar to a transparency overlay on an overhead projector.

Any change made to the overlay affects the picture as seen in the aggregate, but if the

overlay is removed, the underlying picture remains unchanged.

FBWF provides the advanced feature than EWF to let user specify the directory to write the data to disk drive

directly, in our default setting, the default directory is under c:\temp, which means you can read/write the data

into disk without commit action.

Configure File-Based Write Filter

To enable file-based write filtering, do the following:

1. Right-click the lock icon on the right side.