DISCWORLD II PATCH #3 - 26 February 1997
----------------------------------------

Includes:

DISCWORLD II DOS PATCH #3 - 26 February 1997
DISCWORLD II WIN 95 PATCH #3 - 26 February 1997
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Dear Discworld fan,

  Thank you for choosing to play Discworld II. We want you
to see it running at its best on your machine. To this end
we are still improving Discworld II - even after release.

These improvements will be in the form of patch programs
that automatically update your installed version of Discworld II.

This is the third of these patches and contains the combined
features of patches 1 & 2 as well as some new improvements.

Hints on improving performance and troubleshooting will be
updated in README.TXT files (such as this one).

We had a lot of fun (and sleepless nights) making Discworld II.
We hope you have a lot of fun (and sleepless nights) playing it!

  David Johnston
  Software Development Manager
  Perfect Entertainment Ltd.
  dijit@teeny.demon.co.uk


========================
Improvements in patch #3
========================
Patch #3 (for both DOS and Windows versions) is designed to fix a
random bug found to occur in save-game files. It also improves CD-ROM
access on certain types of machines. The list of fixes follows:

MISSING CHARACTER BUG
---------------------
A bug in the loading of games caused specific characters to
disappear. This random bug could affect Rincewind's Camel in act IV,
the appearance of Cassanunda in Djelibeybi and one conversation with
the Dead Collector. In the case of the Camel in Act IV this can make
it impossible to continue the game. This problem has been fixed.
The conditions under which it occurred were random and rare enough
that, unfortunately, it was not caught by the rigorous testing applied
to Discworld II - honest, we didn't mean it :)

MISSING CAMEL - REPLACEMENT SAVE GAME
-------------------------------------
As this patch cannot correct existing save games we have provided a
save game for the most common occurrence of the bug - the missing
camel. The game has been saved at the start of Act IV - with 
Rincewind's camel present. This will allow anyone with the missing
camel problem to continue the game to it's humorous conclusion.
The title of the saved game is "Virtual Camel Restored!".
The file is called SG.1 and needs to be copied to your save game
directory.
For the DOS version it should be placed in the \DW2\SAVE directory.
For Win 95 it should be placed in the
\Program Files\Discworld II\Save folder.

CD-ROM ACCESS
-------------
Some CD-ROM drives (very rare) can have trouble reading the
Discworld II CD-ROMs and after a while a "file ?????.??? is corrupt"
message may occur. We have altered the game to try a lot harder to
wring the data from these drive.

MEMORY USAGE
------------
The game now makes slightly more efficient use of memory during
startup. This will only affect minimum-spec-memory machines
(eg. 8Mb DOS, 16Mb Win95).

INVENTORY WINDOW
----------------
A trivial bug causing the inventory window to corrupt graphically
(and allowing people to be dragged and dropped in the inventory!)
has been corrected. For those of you that found (and enjoyed)
this bug, sorry, we've fixed it!

NOTE:
-----
This patch replaces both PATCH #1 and PATCH #2.
You do NOT need patch #1 or patch #2 to run this patch.


========================
Improvements in patch #2
========================

This patch is designed to improve the performance
of the Windows 95 version of Discworld II including:

MOVIE SYNCHRONISATION
---------------------
Corrects movie synchronisation on specific machines
where the sound can drift out of sync. Also improves
performance of movies on slower machines.

SCENE SPEED-UP
--------------
Speeds up loading and playing of many scenes especially
on low-memory machines.

INSTALL BUG
-----------
Corrects the system registry so that the game will run
from whatever drive you install it to (Simply install to
the required drive then run this patch).

============================================================


============
Instructions
============

WIN 95
------
Please install the Windows 95 version of Discworld II first.
Then Run the patch program entitled DW2_WP3.EXE

This will ensure your Win 95 version of Discworld II is
up-to-date and files correctly organised.

DOS
---
The DOS version only requires the replacement of the main program
file DWB.EXE.  Simply copy DWB.EXE from this patch into the directory
in which you installed Discworld II.

e.g. if the Discworld II MSDOS installation was installed to c:\dw2, use
the following command:

     >copy dwb.exe c:\dw2

This will ensure your DOS version of Discworld II is up-to-date.


------------------------------------------------------------


Troubleshooting Hints
--------------------

Q. Why won't Discworld II (Win 95) run if I install it to
a drive other than C.

A. The Windows installation program on early versions of
Discworld II set a system "registry key" to "C" regardless of
the drive it installed to. To correct this you need to change
the registry key to point to the drive you did install Discworld II
on (see below). Or you can simply run the patch program to correct
it automatically.

- Run 'regedit' from the 'Start' menu, 'Run' option.
- Expand 'HKEY_LOCAL_MACHINE' (click on the plus symbol) 
- Expand 'SOFTWARE'
- Expand 'PERFECT Entertainment'
- Select 'Discworld II'
- Select 'Drive' in the right-hand window
- Select 'Edit' then 'Modify' from the menu
- Enter the new drive letter (where you installed Discworld II)
- Close RegEdit and run Discworld II
-------------------------------------------------------------------

Q. Why does the game (Windows only) pause briefly whenever
Rincewind changes scale?

A. The Windows installation program on early versions of
Discworld II copied some files to the wrong place on your hard
drive. If you move these files (see below) to the correct
folder the momentary pauses will disappear. Or you can simply
run the patch program to correct it automatically.
n.b. this problem may only be visible on machines with the minimum
specified amount of RAM. See also the following tip for speeding up
CD access generally.

- There is a folder called CACHE under the folder you 
installed Discworld II in. The installation program incorrectly
copied 21 files (needed for faster access) into a folder called
DW2 within the CACHE folder. Simply move the files back to the
CACHE folder and the pauses should vanish.
-------------------------------------------------------------------

Q. My CD ROM drive does not appear to be fast enough to run
Discworld II properly. The sound cuts out briefly every now
and then. How can I speed the game up on my machine?

A. This is a tough one as it depends on the configuration of your
machine. If you have a lot of free drive space you can move many
files from the Discworld II CDs to your hard drive (see below).
Discworld II still requires the presence of the CDs but will 
check the hard disk first before loading files, this will speed
up the game significantly.

- There is a folder called CACHE under the folder you 
installed Discworld II in. Most files can be copied here from
the DW2 folders of either CD 1 or CD 2, however, some files
(of the same name) are different on CD 1 and CD 2. To cater for
these specific files you can create folders under the CACHE folder
called CD1 and CD2. The files in question relate to text and speech
and have extensions of .SMP, .TXT and .IDX (see following hint for
details). Any of these files from the DW2 folder of CD 1 can go in
CD1 and those from the DW2 folder of CD 2 can go in CD2.
n.b. To save space you only have to have files from the CD you
are currently playing on your hard drive.
-------------------------------------------------------------------

Q. I only want to copy some files from the CDs to my hard drive
to speed it up. What are the various file types on the Discworld II CDs?

A. To make your choice of files to copy easier here are some details
of the more important file types on the Discworld II CDs. The CACHE
folder is found within the folder you installed Discworld II. The CD1
and CD2 folders should be created within the CACHE folder (if required).

File Type   Description        Should I copy to hard disk?             Where to copy...
---------   -----------        ---------------------------             ----------------
  .MUS      Music data         Reduces CD access significantly if      CACHE folder
                               copied to hard disk as music is read
                               in regularly. Should improve scenes
                               containing lots of sound effects.

  .SCN      Code and graphics  Scene load times reduced if copied to   CACHE folder
                               hard disk - no other benefit.
                               n.b. some critical scenes are already
                               copied to hard disk during installation.

  .CDP      Graphic sequences  Smoothes out brief pauses while         CACHE folder
                               loading extra graphics within a scene.

  .BMV      'B movies'         Only copy to hard drive if the movies   CACHE folder
                               are playing badly or sound shuts off.
                               Movie pre-load times are also reduced
                               if the movies are copied.

  .SMP      Speech/Sound FX    Only copy to hard drive if you are      CD1 or CD2 folder
                               experiencing regular sound glitches.

  .IDX      Speech index       Loaded once only - can stay on CD.      CD1 or CD2 folder

  .TXT      Sub-title text     Loaded once only - can stay on CD.      CD1 or CD2 folder
----------------------------------------------------------------------------------------

Q. Why is the sound in Discworld II distorting when running
under Windows 95 on my Packard Bell PC?

A. There may be a conflict with the 'Software Wave Table'
feature of your sound card. Try turning the option off
(See below).

- Open the control panel (under 'setting' on the Start menu)
- Open 'system'
- Select 'Device Manager'
- Expand 'Sound, video and game controllers' (click on the plus symbol)
- Select 'Sound 16 SRS & Wave Table'
- Click on the 'Properties' button
- Select 'Settings'
- De-select the option 'Software Wave Table Enabled'
- Close the control panel windows and run Discworld II
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Q. I have just reached the start of Act IV and Rincewind's camel has
disappeared! Where is he and how do I get him back?

A. A random bug in the loading of games can cause Rincewind's camel
to disappear in Act IV. Use the saved game provided with this patch
to continue the game from the start of Act IV, with the camel.

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- End of README.TXT -
