************** Update for PWPL CD-ROMs **************
**************   January 17th, 2000    **************

Overview:
---------
    This file describes how to install the updated
    common files (COMN?.SBK). These files contain
    patches designed to alleviate a known problems 
    in MPEG player software, including MS ActiveMovie.


Installing The Update:
---------------------
1.   Copy the WLN.INI file to workstation ID 
     directory (C:\IDWINCMS) on the local hard drive.  
     C:\IDWINCMS is created after the Windows Course 
     Management System (CMS) is run the first time on that 
     workstation. NOTE: This file must be 
     copied to C:\IDWINCMS on EACH workstation, even on 
     network installations. 

2.   Copy the COMN.SBK, COMN2.SBK, COMN3.SBK and
     MMSITE.TBK files to the directory where the Course 
     Management System (CMS) is installed.  In Standalone 
     installations, this is C:\NCMS by default.  

     If you are running a networked CMS installation,
     make sure that these files are flagged as Shareable 
     for Netware networks or marked as READ-ONLY for 
     non-Netware networks. Please consult your network 
     administrator for assistance with setting these file
     attributes.

Enabling the Patchs:
--------------------

    The WLN.INI included with this update contains the 
    following lines:

    [Patches]
    amovfix=on
    tsfix=on
    am61=on
    ntamovfix=off
    cmodfix=off
    playfix=off
    MPGWAVAVIlevels=50,50,50

    To enable a specific patch, change the "off" to "on". 
    Each line has a specific function. Often you will have 
    more than one line set to "on" depending on your specific 
    system configuration.
    The last line addresses a common problem of uneven audio
    playback within a unit.  These numbers do not need to be
    manually set.  An explanation of this patch is in the
    next section.

Patch Descriptions:
-------------------

AM61:	   This modifies the sequence of commands used to 
           play MPEG files. This change is required on 
           systems running the latest version of ActiveMovie. 
           The version of ActiveMovie is distributed with MS 
           Internet Explorer 5 and the Windows Media Player V6.x.

AMOVFIX:   This causes the courseware  to change the style of 
	   window the video creates when opening an MPEG clip.  
           This patch speeds up the video frame rate on MPEG 
	   playback with ActiveMovie. This patch applies to 
	   Win95/98 but may yield positive results on a few 
	   Windows NT systems

	   NOTE:  When this patch is activated, the zooming 
	   "F5" function will only work when video is paused, 
	   not playing. To zoom the video, click on the pause 
	   button, then "F5" and click pause to resume the
	   video. The one side effect is altered F5 availability.  
 	   Clicking on buttons/objects in the program functions 
	   as normal.

TSFIX:     This patch was implemented to bypass a problem in 
	   ActiveMovie that can cause the system to task switch 
	   back to the CMS if a specific series of actions are 
	   performed. This patch applies to Win95/98 but may 
	   yield positive results on a few Windows NT systems

NTAMOVFIX: This patch adjusts the video playback of the unit 
	   introduction. This corrects the NT/ActiveMovie 
	   disappearing video in the unit introduction.   This 
 	   is an extremely obscure problem, that has only 
	   manifested itself on Windows NT 4.0 running ActiveMovie.  

CMODFIX:   This patch determins which MPEG device name that 
	   the CD-ROM units will use to display video.
	   if CMODFIX is off (default) the device name MPEGVideo
	   is used. The device name REELMagic is used when CMODFIX
 	   is set to on.

	   This patch was originally developed for the Compaq LTE
 	   laptops using the Compaq MPEG adapter, but allows you 
 	   to switch between two unique MPEG players if necessary.
          
PLAYFIX:   This patch adjusts for an MPEG player that incorrectly
	   returns the number of frames (length) of a video clip.
	   Setting PLAYFIX to on truncates the clip by 1/3 second.

	   This patch was originally developed for the Compaq LTE
 	   laptops using the Compaq MPEG adapter.

MPGWAVAVIlevels:    This patch allows the user to adjust the audio
			playback levels within a unit.  Some of the 
			Maintenance and Operations units have audio
			levels that shift between video and still
			picture playback.  To adjust these, pause the
			video and use [CTRL] + [U] and [CTRL] + [D] to
			move the audio up and down.  The type of audio
			being adjusted depends on what is currently on
			the screen when this is done, be it a video or
			still picture voice over.


Common WLN.INI Settings:
------------------------

* Win95/98, ActiveMovie 1.0 
      [Patches]
      amovfix=on
      tsfix=on
      am61=off
      ntamovfix=off
      cmodfix=off
      playfix=off
      MPGWAVAVIlevels=50,50,50

* Win95/98 IE5 or Windows Media Player 6.X

      [Patches]
      amovfix=on
      tsfix=on
      am61=on
      ntamovfix=off
      cmodfix=off
      playfix=off
      MPGWAVAVIlevels=50,50,50

* Win NT IE5 or Windows Media Player 6.X

      [Patches]
      amovfix=off
      tsfix=off
      am61=on
      ntamovfix=off
      cmodfix=off
      playfix=off
      MPGWAVAVIlevels=50,50,50

    Note: Some Win NT systems may benefit from the 
    TSFIX and AMOVFIX. If the unit introduction does 
    not play properly, enable the NTAMOVFIX line.

* Win 3.1/95/98 with Realmagic card

      [Patches]
      amovfix=off
      tsfix=off
      am61=off
      ntamovfix=off
      cmodfix=on
      playfix=off
      MPGWAVAVIlevels=50,50,50

    Note: This configuration will usually work 
    properly with all patch settings turned off.

* Win 95/98 with Compaq LTE Laptop and MPEG adapter

      [Patches]
      amovfix=off
      tsfix=off
      am61=off
      ntamovfix=off
      cmodfix=on
      playfix=on
      MPGWAVAVIlevels=50,50,50

Please call WLN Technical Support if you require 
   additional assistance or information