WLK CSS Negotiation Region Check Test

Note  This content applies to the Windows Logo Kit (WLK). For the latest information using the new Windows Hardware Certification Kit (HCK), see Windows HCK User's Guide on the Windows Hardware Dev Center.

Type: Automated Test


The CSS Negotiation\Region Check test verifies that it does not take more than 20 ms to start and end the CSS session or conduct a region check on the DVD content. This test requires a CSS-encrypted DVD. The test operates by programmatically running Windows Media Player and taking an event trace log that records the negotiation and region check events and parses the log file, looking for any event that has a timestamp of longer than the bar of 20 ms.


Run Time: 1 minute
Log File: DVDWLK.wtl
System Restart Required: No
Test Category: Storage
Supported operating systems for Logo or Signature testing:
  • Windows 7

  • Windows Server 2008 R2

  • Windows Vista

  • Windows Server 2008

  • Windows XP

  • Windows Server 2003

Program: DVDWLK.exe


Software Requirements

The test tool requires the following software:

  • Supported operating system (see list above)

  • Windows Media Player

Hardware Requirements

The test tool requires the following hardware:

  • Machine with optical drive that is capable of playing DVDs

  • A specific DVD that contains some CSS-encrypted content. The Microsoft Test Annex DVD can be ordered at the following Microsoft web site: Order the DVD Test Annex

    This test requires the Test Annex DVD specifically and will fail if this DVD is not used.


The test tool runs on the following processor architectures:

  • x86

  • x64

  • IA64

Running the Test

To run the test, simply use the syntax below. Failures may occur if there is no DVD in the drive, the DVD is not the specified DVD, or no repetition parameter or drive letter is provided.

Command Syntax

Command option Description


This test has required parameters. Without any parameters entered, the test will output help text

-d [string]:

Specifies the volume of the optical disk drive (for example, D:) When run in an automated setting with WTT, the Create Storage Parameters setup task will resolve the drive letter with the parameter StorageDriveLetter. (Required parameter)

-2 [int]:

Since the test binary contains four separate tests, this parameter specifies that test case 2 (DVD CSS Negotiation/Region Check) should be run. It is necessary to also specify the number of times for the test to be run. This is set by default in the test job to 1. (Required parameter)


Code Tour

File Manifest

File Location






Build date: 9/14/2012

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