32 Bit Mode Required

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities that
work only on 32 bit systems; I currently have Windows 7 64 bit o/s, and
my program no longer works. I am looking for V a 64 bit version of
these compression utilities...or another way to run my program in 32 bit
mode.
Any thoughts? TIA


---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

You might look at DosBox and somekind of batch file to see if you could make
something work.
--
Bill

Brought to you from Anchorage, Alaska

"MikeCopeland" wrote in message
...
Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities that
work only on 32 bit systems; I currently have Windows 7 64 bit o/s, and
my program no longer works. I am looking for V a 64 bit version of
these compression utilities...or another way to run my program in 32 bit
mode.
Any thoughts? TIA

MikeCopeland wrote:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities that
work only on 32 bit systems; I currently have Windows 7 64 bit o/s, and
my program no longer works.

The problem is that Win64 does not include support for 16-bit apps (which
includes DOS). 32-bit programs will run just fine.

I am looking for V a 64 bit version of
these compression utilities...or another way to run my program in 32 bit
mode.
Any thoughts? TIA

PKZip is still around:
https://www.pkware.com/software/pkzip/windows/

....as is WinZip, which I believe was more popular than PKZip on Windows:
http://www.winzip.com/

....but Info-ZIP is *free*:
http://www.info-zip.org/

....and even has a Win64 version:
ftp://ftp.info-zip.org/pub/infozip/w...p300xn-x64.zip
ftp://ftp.info-zip.org/pub/infozip/w...z552xn-x64.exe

(Yes, you have to download Zip and UnZip separately. unz552xn-x64.exe is a
self-extracting archive.)

Alternately, if you care to rewrite your util, you can just use Info-ZIP's
DLL:
ftp://ftp.info-zip.org/pub/infozip/win32/unz600dn.zip

....but that's 32-bit, not 64-bit.

--
Mr. Pill Bug has just been unwittingly impregnated by baby hellraiser worms.

MikeCopeland wrote in
:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities
that work only on 32 bit systems; I currently have Windows 7 64
bit o/s, and my program no longer works. I am looking for V a 64
bit version of these compression utilities...or another way to run
my program in 32 bit mode.

64-bit systems should run 32-bit utilities just fine as is. I suspect
that the PKZip utilities are 16-bit, and so would not run on a 64-bit
system.

7-Zip has 32-bit utilities that will run on 64-bit systems:

http://www.7-zip.org/download.html

In article ,
, MikeCopeland says...

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities that
work only on 32 bit systems; I currently have Windows 7 64 bit o/s, and
my program no longer works. I am looking for V a 64 bit version of
these compression utilities...or another way to run my program in 32 bit
mode.
Any thoughts? TIA

You go with your 32bit app - you're already running heaps of 32bit
programs in your Win 7 64bit. They'll run fine.

Many 16bit apps, you can run in Windows 7 under Virtual PC / XP Mode.

--
Duncan.

MikeCopeland wrote:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities

tried the IZarc command line tools?

On 02/11/2016 01:09 PM, Bill Bradshaw wrote:
You might look at DosBox and somekind of batch file to see if you could make
something work.



Correct.

64bit Win7 will run 32bit apps but not 16 bit

I recently gave DosBox a try to see if I could run an ancient program I
wrote in Qbasic and it worked fine.

MikeCopeland wrote on 2016/02/11:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities
that work only on 32 bit systems; I currently have Windows 7 64 bit
o/s, and my program no longer works. I am looking for V a 64 bit
version of these compression utilities...or another way to run my
program in 32 bit mode.

'PKZip for DOS' (a 16-bit app) is not supported under x64 versions of
Windows. The WOW (Windows On Windows) eulation layer only goes back one
bitness level (https://en.wikipedia.org/wiki/Windows_on_Windows).

Upgrade to 'PKZip for Windows Desktop'. That costs money ($29). There
are free compression archive tools available that have a CLI (command
line interface), like 7-Zip and Peazip. So your front-end or wrapper
"program" would merely be a batch file listing the commands to use those
free zip alternates.

I don't know what is your "program". If it is just a script or batch
file, you should be able to figure out how to convert the command-line
calls to PKZip to instead use Peazip's or 7-zip's CLI. If it is a
compiled 16-bit program then you will have to re-compile your code as a
32-bit executable - but you will still need to get 32-bit versions of
PKzip (payware) or use freeware zip alternatives that have a CLI.

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

Disable the option in Avast that has it add a fake signature ("---" is
not a valid signature delimiter line) and spamifies your posts. No one
is going to believe your posts are pest-free just because you say so.

In article , says...
Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities
that work only on 32 bit systems; I currently have Windows 7 64 bit
o/s, and my program no longer works. I am looking for V a 64 bit
version of these compression utilities...or another way to run my
program in 32 bit mode.

I don't know what is your "program". If it is just a script or batch
file, you should be able to figure out how to convert the command-line
calls to PKZip to instead use Peazip's or 7-zip's CLI. If it is a
compiled 16-bit program then you will have to re-compile your code as a
32-bit executable - but you will still need to get 32-bit versions of
PKzip (payware) or use freeware zip alternatives that have a CLI.

It's an actual (C++) program I drveloped. The interface call uses
the "system" command function in the Visual Studio implementation.
FWTW...

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

You didn't indicate what you want to do, or why
it's important to keep your software running. As
others have said, you can't run 16-bit on 64-bit.
You might want to consider writing a new, 32-bit
version... Or switching to Win7-32.

PKWare seems to sell software and license DLLs.
If you want free DLLs I think the standard these
days are what's available from info-zip.org. I used
their zip32.dll some years ago. There's code for
that around.

"Nil" wrote in message
. 4.11...
MikeCopeland wrote in
:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities
that work only on 32 bit systems; I currently have Windows 7 64
bit o/s, and my program no longer works. I am looking for V a 64
bit version of these compression utilities...or another way to run
my program in 32 bit mode.

64-bit systems should run 32-bit utilities just fine as is. I suspect
that the PKZip utilities are 16-bit, and so would not run on a 64-bit
system.

7-Zip has 32-bit utilities that will run on 64-bit systems:

http://www.7-zip.org/download.html

And 64-bit 7-Zip, too. If the OP can change his program to run a 32-bit
version, he shouldn't have any trouble with a 64-bit target. Depending on
his amount of RAM, I would think the 64-bit version would be a bit faster
and smoother (although I'm sure that ain't necessarily so).
--
SC Tom

In article , says...

"Nil" wrote in message
. 4.11...
MikeCopeland wrote in
:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities
that work only on 32 bit systems; I currently have Windows 7 64
bit o/s, and my program no longer works. I am looking for V a 64
bit version of these compression utilities...or another way to run
my program in 32 bit mode.

64-bit systems should run 32-bit utilities just fine as is. I suspect
that the PKZip utilities are 16-bit, and so would not run on a 64-bit
system.

7-Zip has 32-bit utilities that will run on 64-bit systems:

http://www.7-zip.org/download.html

And 64-bit 7-Zip, too. If the OP can change his program to run a 32-bit
version, he shouldn't have any trouble with a 64-bit target. Depending on
his amount of RAM, I would think the 64-bit version would be a bit faster
and smoother (although I'm sure that ain't necessarily so).

I'm unsure how this will help. My program (written in C++) uses the
"system" function - which makes a "DOS call" to execute the command line
that's specified. Thus, unless one of these 32 or 64 bit (Windows)
tilities has a DOS command interface, I don't see how using a Windows
app helps me at all.
Note that part of my program searches for ZIP files and unpacks them
serially and keeps the newest file(s) output so that the resulting
expansions leave the latest stuff in the output directory. I need to
have whatever I use have the same capability (and most Windows apps I
know of require a user response to deal with collisions...

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

On Thu, 11 Feb 2016 22:08:10 -0700, MikeCopeland wrote:

In article , says...

"Nil" wrote in message
. 4.11...

7-Zip has 32-bit utilities that will run on 64-bit systems:

http://www.7-zip.org/download.html

And 64-bit 7-Zip, too. If the OP can change his program to run a 32-bit
version, he shouldn't have any trouble with a 64-bit target. Depending on
his amount of RAM, I would think the 64-bit version would be a bit faster
and smoother (although I'm sure that ain't necessarily so).

I'm unsure how this will help. My program (written in C++) uses the
"system" function - which makes a "DOS call" to execute the command line
that's specified. Thus, unless one of these 32 or 64 bit (Windows)
tilities has a DOS command interface, I don't see how using a Windows
app helps me at all.


The 7-Zip installation includes a utility (7z.exe) with a "DOS" command interface.

The 7-Zip help file includes help for the command line version.



--
Kind regards
Ralph

MikeCopeland wrote in
:

http://www.7-zip.org/download.html

I'm unsure how this will help. My program (written in C++) uses
the "system" function - which makes a "DOS call" to execute the
command line that's specified. Thus, unless one of these 32 or 64
bit (Windows) tilities has a DOS command interface, I don't see
how using a Windows app helps me at all.

Since you never described your program, I'm unsure how you expected
us to know that. In any case, I assumed you wanted a command-line
utility and specifically included a link to 7Zip's 32-bit one. Did
you look at it?

MikeCopeland wrote:
In article , says...
"Nil" wrote in message
. 4.11...
MikeCopeland wrote in
:

Years ago I wrote a utility program for myself that merges and
combines ZIP files. It uses DOS-based PKZip and PKUnZip utilities
that work only on 32 bit systems; I currently have Windows 7 64
bit o/s, and my program no longer works. I am looking for V a 64
bit version of these compression utilities...or another way to run
my program in 32 bit mode.
64-bit systems should run 32-bit utilities just fine as is. I suspect
that the PKZip utilities are 16-bit, and so would not run on a 64-bit
system.

7-Zip has 32-bit utilities that will run on 64-bit systems:

http://www.7-zip.org/download.html
And 64-bit 7-Zip, too. If the OP can change his program to run a 32-bit
version, he shouldn't have any trouble with a 64-bit target. Depending on
his amount of RAM, I would think the 64-bit version would be a bit faster
and smoother (although I'm sure that ain't necessarily so).

I'm unsure how this will help. My program (written in C++) uses the
"system" function - which makes a "DOS call" to execute the command line
that's specified. Thus, unless one of these 32 or 64 bit (Windows)
tilities has a DOS command interface, I don't see how using a Windows
app helps me at all.
Note that part of my program searches for ZIP files and unpacks them
serially and keeps the newest file(s) output so that the resulting
expansions leave the latest stuff in the output directory. I need to
have whatever I use have the same capability (and most Windows apps I
know of require a user response to deal with collisions...

Copied from 7zip.chm, a file in the 7ZIP download.

*******
a (Add) command
Adds files to archive.

Examples
7z a archive1.zip subdir\

adds all files and subfolders from folder subdir
to archive archive1.zip. The filenames in archive
will contain subdir\ prefix.

7z a archive2.zip .\subdir\*

adds all files and subfolders from folder subdir
to archive archive2.zip. The filenames in archive
will not contain subdir\ prefix.

cd /D c:\dir1\
7z a c:\archive3.zip dir2\dir3\

The filenames in archive c:\archive3.zip will contain
dir2\dir3\ prefix, but they will not contain c:\dir1\ prefix.

7z a Files.7z *.txt -r

adds all *.txt files from current folder and its subfolders to archive Files.7z.
*******
(List contents of archive) command
Lists contents of archive.

Examples
7z l archive.zip

lists all files from archive archive.zip.
*******

You should be able to use the "list" function for
collision detection. Then use the "add" function
to selectively add things. The tool in this case
is an EXE rather than a DLL.

There is also a 7z.dll, and you might be able to use that.

There is also source available.

https://sourceforge.net/projects/sev...s/7-Zip/15.14/
7z1514-src.7z

HTH,
Paul