CBFS® Direct

Give Your Applications Direct Access to Files and Disks in Your Windows Applications


Use CBFS Direct enable your applications to directly access files or disk partitions (including hard drives and flash disks) without facing Windows-imposed restrictions. Windows doesn’t allow you to access the disks from user-mode processes, prevents you from using raw access to disks from restricted accounts, and won't let you open the file if it's exclusively opened by another application or if security settings (permissions) don't allow you. CBFS Direct effectively solves this problem by providing a kernel-mode driver. Using this driver, you can read and write the data to/from the disk or opened files without restrictions. Also, you can delete a locked or in other way inaccessible file. All you need to do is add two extra function calls to your application.

Directly Access Disks in Windows XP, 7, 8.x, and 10

Enable your application to access the hard disk directly. Disk sectors can be read or written from user-mode processes, thus going around direct access ban imposed by the operating system.

Ignore File Locking and Security Restrictions

CBFS Direct allows access to files that are already opened or have restricted access security settings. This significantly simplifies implementation of backup application.

Read or Write Disk Sector by Sector

CBFS Direct gives you the ability to write and read disks sector by sector without operating-system-imposed restrictions comes in handy for development of data recovery, undelete, and forensic applications.


  • Windows Vista, 7, 8, 8.1, 10
  • Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016

Microsoft .NET Framework

  • 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.6, 4.7.x


  • Visual Studio 2008, 2010, 2012, 2013, 2015, 2017


  • Visual Studio 2008, 2010, 2012, 2013, 2015, 2017

VCL API (no need for external DLLs)

  • Delphi 2007 to Delphi 10.2 Tokyo (32-bit Windows Only)
  • C++ Builder XE to C++ Builder 10.2 Tokyo (32-bit Windows Only)

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Download Now v2017.0.2 | 03/17/2018

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