Problem Solution
After installing a new program and rebooting your system you received a blue screen with the following error:

BUG_CHECK 0xC1(0, 0, 0, 0)

and the string "Most probably caused by "AFPAnsi.sys" or "BXShield.sys"". (BXShield.sys is AFPAnsi.sys with custom resources).

The system will not necessarily bug check right after reboot. The bug is related to parsing of file names with exactly 192 characters, so the likelihood of receiving this error is low.

This is a bug in Alfa File Protector driver dated between December 8th 2003 (version 2003.0.1.21) and May 18th 2004 (version 2004.0.2.22). The bug affected both demo and registered version drivers.

Use the Microsoft Recovery Console to delete AFPAnsi.sys (or BXShield.sys) from \WinNT\System32\Drivers directory. For more information on the Recovery Console, consult the manual that came with your OS or visit (from another computer) Microsoft's website.

After reboot, the program using AFPAnsi.sys will, most probably, notice the driver is missing and notify you that it must be reinstalled. Please contact the manufacturer of the program for an update to fix the problem.

AFP is a product used by 3rd party programs for file security and hiding purposes. Examples of such programs are "file access restriction" programs, Distributed Rights Management (DRM) solutions and others. It is necessary to determine the program which installed the AFP driver, in order to contact the manufacturer for an update. Most programs will disable deleting AFPAnsi.sys/BXShield.sys when the OS is booted.

NOTE: Simply installing the newest AFP driver will fix the bug check, however since data structures have changed between versions, this will affect how the program runs. Unless you update the program directly from the manufacturer, it is probable the software will not run properly. The registered driver is not distributed to end-users by Alfa Corporation.


    Latest news:

    • August 24th 2004: ATE is now provided in Normal and Network edition. The Network edition provides transparent file encryption technology over a standard Windows, making all physical transfers encrypted. New pricing for ATE is now in motion.
    • July 27th 2004. New demo versions of AFM, AFP and ATE are provided for download. The demo versions expire in December 2004. See What's new file in each product for a complete list of changes.
    • January 1st 2004.  As of January 2004, Alfa products no longer officially support 9x/Me OSes. The registered version will still provide latest binaries, however, no new features will be implemented in 9x/Me binaries after the aforementioned date.

 

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