The information in this appendix provides troubleshooting notes for installing and
running Prolifics software on Microsoft Windows.
WECJLIB.DLL is a dynamic link library which performs JPEG decoding. There are
two versions of the DLL. The version that comes with Panther can be freely
distributed. An enhanced version, which has added functionality, can be ordered
from Express Compression Labs (ECL).
In the version of the DLL provided with Panther, images are rendered using
ordered dithering. The enhanced version of the DLL supports Hi-Color and
Tru-Color display hardware. With such hardware, dithering is not necessary and
the best possible picture quality can be achieved. Two-pass color quantization and
improved dithering are also supported in the enhanced version, which results in
better picture quality on 256-color display devices.
To order single- and multiple-user licenses for the enhanced version of the DLL,
email: email@example.com, or write:
Dr. Y. Shan
P.O. Box 367
Caulfield East VIC 3145, Australia
If COMMAND.COM runs out of environment space when you issue a SET command,
add the following line to your CONFIG.SYS file:
SHELL=C:\COMMAND.COM /E:1000 /P
If COMMAND.COM resides on a different drive or directory, modify the line
For Microsoft Visual C++ distributions, all the distributed libraries created in the
current version of Panther are compiled with the /FPc switch, so that you can
choose at link time which floating-point library to use. You can use either the math
coprocessor library (LLIBC7.LIB), the emulator library (LLIBCE.LIB, the
default), or the alternate math library (LLIBCA.LIB).
A single makefile is provided for creating Panther executables. It is not
necessary to use Microsoft Visual C++'s Visual Workbench or Developer Studio to
create new Panther executables. Instead, you can invoke the nmake utility directly
from the command line to create executables. If you want to use Visual Workbench
or Developer Studio, you can use the makefile as an external module.
You can use Microsoft Visual C (MSVC) project files to build and link Prolifics
executables with your C and C++ modules.
Prolifics Executables that may be rebuilt:
LINK: warning LNK4089: all references to "SHELL32.dll"
discarded by /OPT:REF
LINK: warning LNK4089: all references to "comdlg32.dll"
discarded by /OPT:REF
Because of various limitations of Windows, it can be challenging to use Panther's
utilities when launched from the Program Manager or the Start menu. The problem
arises because Window's notion of the current directory is hidden from the user.
By default, all Panther's utilities are designed to be run from the DOS command
line, with the following exceptions: binherit.exe, f2asc.exe,
clnt2svr.exe, and isqlw.exe (refer to the Note below). In the DOS
environment, there is a current directory, and when the utilities run they operate on
files in that directory by default. Under Windows, however, the current directory is
usually set to the directory holding the executable, for example,
Therefore, if you launch a utility, such as f2asc, from the Program Manager or the
Start menu and type -a foo.asc foo.pro in the Parameters window, f2asc
looks for foo.pro in the util directory and creates its output foo.asc there as
well. Since this is usually not what you want, consider one of the following