Enhanced Write Filter (Windows Embedded Standard 2009)

4/23/2012

Enhanced Write Filter (EWF) provides the ability to write-protect a run-time image. By redirecting all write requests to either a separate disk partition or RAM, EWF allows the run-time image to maintain the appearance of a writeable run-time image. Additionally, Enhanced Write Filter provides the ability to deploy a run-time image onto read-only media, such as a CD-ROM.

In This Section

• EWF Overview
  Provides an overview of Enhanced Write Filter. This overview describes the EWF architecture and the components that are required to support EWF. It also defines common EWF terminology.

• EWF Modes
  Describes the different modes of EWF, and how to implement each type.

• EWF Design Considerations
  Describes the considerations you should make before configuring and deploying an EWF-protected run-time image.

• Troubleshooting Enhanced Write Filter
  Provides tips for troubleshooting common EWF configuration problems.

• Enhanced Write Filter API
  Describes the functions that you can use to programmatically control EWF.

Related Sections

• Design a Run-Time Image
  Describes the design phase of the development process. During this phase you can choose the components and resources that are required for your run-time image.

• EWF Definitions
  Describes EWF-specific terminology.

• EWF Architecture
  Describes the EWF driver architecture.

• EWF Components
  Describes the components that support EWF.