PicLan Version 220.127.116.11 Release Announcement
(C) Copyright 1990-1996 Modular Software Corporation. All rights reserved.
For more information about PicLan contact: email@example.com
PicLan Version 18.104.22.168 is Now Available
June 9, 1996
PicLan version 22.214.171.124 is currently being released for all platforms.
This release is intended to be the last BETA before version 2.0 is declared
production. All features intended for the 2.0 release are included in build
The following new feature have been added to version 126.96.36.199:
PLTW32.EXE is a 32-bit version of the PLTW.EXE terminal emulator. The 32-bit
version of this program should provide smoother performance in 32-bit environments
(Windows NT and Windows 95 with 32-bit drivers). In particular, Windows
95 systems with slow CPUs should be much more responsive with PLTW32.EXE
than with 16-bit emulators. PLTW32.EXE will NOT run under WIN32S.
Version 188.8.131.52 has undergone considerable testing in a number of areas
The DSG functions for file import and export have been tested on a variety
of platforms. Particular attention was paid to testing large import operations
consisting of more than 100 Megabytes. Some bugs in this area were found.
All three DSG programs (PL-TERM.EXE, PL-DSG.EXE, and PL-DSGW.EXE) now appear
to be able to reliably import very large amounts of data and do so with
multiple applications using them concurrently.
PCI Adapter Testing
The 184.108.40.206 build has been tested using the following four network adapter
running in the Pick host system:
All of these adapter should also have worked with version 220.127.116.11, but
some field reports showed problems with the SMC cards, so they were all
retested. Testing was performed on a P133 system with an Intel MB (courtesy
Compex ENET32/PCI Rev B3 (a 21040 based adapter)
Compex ENET32/PCI Rev D1 (a 21041 based adapter)
Linksys model LNEPCI (a 21040 based adapter)
SMC model 8432BT (a 21041 based adapter)
The following code changes have been made to version 18.104.22.168:
Visual Basic Applications
A number of PicLan Windows applications are actually Visual Basic applications
that run in conjunction with DLL routines written in 'C'. These applications
All of these programs have been upgraded to use Visual Basic version 4.0.
This means that VBRUN200.DLL is no longer in use and has been replaced
with VB40016.DLL (for 16-bit applications), and VB40032.DLL (for 32-bit
applications). PLTW, PL-STATW, PL-DSGW, and PL_SETUP are all 16-bit applications.
PLTW32 is a 32-bit application.
PLTW.EXE - Windows Terminal Emulator
PLTW32.EXE - 32-bit Windows Terminal Emulator
PL-STATW.EXE - Windows Status Display
PL-DSGW.EXE - Windows DOS Services Gateway
PL_SETUP.EXE - Windows Driver Setup Program
In addition to upgrading to Visual Basic version 4.0, a number of VBX
dependencies within PicLan applications have been eliminated. PicLan programs
no longer use the files COMMDLG.VBX, PLAN.VBX, and PLTVB.VBX. The functionality
of PLAN.VBX is now included in PicLan VB code. The functionality of PLTVB.VBX
has been moved to PLTWD.DLL (for 16-bit programs) and PLTW32D.DLL (for
Windows Support Files
With the switch to Visual Basic version 4, the number and names of Windows
support files has also changed.
The following files are used with 16-bit Windows applications. All of
these files are loaded into the Windows SYSTEM directory:
The following files are used with 32-bit Windows applications. All of these
files are loaded into the Windows SYSTEM32 directory:
All of these files are loaded onto your system by the SETUP.EXE program
that you run to extract PicLan files. You should always use SETUP to install
PicLan onto a Windows system because some files may not have been copied
otherwise. The SETUP program also checks the revisions of these files against
copies of these files that you may already have loaded. If SETUP finds
that you have a newer version of any of these files, then SETUP will use
the newer version instead of loading the version that was included with
The following bugs have been fixed in version 22.214.171.124:
PLTW.EXE / PLTW32.EXE
These program now allow you to use the PgUp, PgDn, Home, and End keys.
NE2000 Ethernet Driver
The NE2000 Ethernet driver has been reorganized to prevent timing related
system hangs and to improve performance. In particular, the overhead on
the Pick host system has been drastically reduced. On some system, the
amount of PicLan overhead could actually cause the host system to lose
system time (this was particularly bad with Mentor PRO). The new driver
does not appear to have any of these problems and extensive stress testing
has failed to hang any Pick host systems either at Modular Software or
at several dealers.
DEC 21041 PCI Boards
The PCI driver has been modified to correctly address PCI adapters that
use the DEC 21041 Ethernet controller chip. PCI boards tested in-house
at Modular Software currently include:
100 Megabit adapters based on the 21140 Ethernet controller chip have not
Linksys - "EtherPCI LAN Card" - Model LNEPCI (21040 based)
Compex - "ENET32/PCI" - Rev B3 (21040 based)
Compex - "ENET32/PCI" - Rev D1 (21041 based)
SMC - "EtherPower" - Model SMC8432BT (21041 based)
A bug in the login of the DOS Services Gateway has been fixed that would
cause intermittent "Command Timeout" errors when reading data from the
DSG has been fixed. This bug was a timing related problem that would most
likely occur with the following elements:
The bug required that the DSG buffer a large amount of data on the way
to the Pick host at the same time as the Pick host was busy with network
traffic. If these conditions exactly filled the PicLan buffer to the connection
completely just at the end of a transaction block, then the end-of-block
delimiter character would be skipped, thus causing the timeout. The bug
has been fixed so that network and system timing should no longer effect
Fast DSG CPU
Fast DSG file access
Slow Pick responsiveness
Busy network traffic.
The nature of this bug would manifest itself as "Command Timeouts".
The problems appear worst when reading large files from a file stored locally
on the DSG (network files are slower and thus do not exhibit the problems
as often). Making the block size larger would make the timeouts occur less
PL-DSGW Heap Problems
PL-DSGW.EXE has been modified to avoid using repetitive global heap memory
allocations which can fragment windows memory after the program has run
for a large number of transaction.
PLAN32.DLL / PLAN32S.EXE Heap Bug
A bug in the 32-bit client allocation routines has been fixed.
Print Job Collisions
A bug in PLSP.EVENT.CHECK.SPOOLER was discovered which would allow multiple
print jobs to be spooled to a single destination simultaniously. In some
environments, this could result in corrupted print jobs. This has been
Because of the changes to Visual Basic version 4.0, and the addition of
PLTW32.EXE, the client distribution is now 4 diskettes (up from 2 diskettes)
when shipped, and 4.4 Megabytes (up from 1.9 Megabytes) via download.
Because of the size of the downloadble file, it will now be posted in
two parts. For version 126.96.36.199, these files are:
The first archive contains purely PicLan programs (1.9 Meg), and the second
archive contains Microsoft redistributable components (2.5 Meg). Depending
on your situation, you may not need to download both parts:
PL191ED.ZIP - The PicLan DOS and Windows distribution files
PL191EW.ZIP - The Windows distribution files
If you are installing for DOS use only, you only need to first file.
The second file will not change with each PicLan release, so if you are
upgrading PicLan releases, you may already have the second file.
If this release is completely new, then you will need both files. At least
they are smaller pieces which should make file transfer crashes a little
easier to bear.