TWS on 64 bit Win7

The application is platform independent (written in java)

But there is something between the platform and the application - the java virtual machine (jvm). And it converts java to machine code etc in a very platform dependent way.

So on w7x64 you install both the 32 bit and 64 bit versions of the java virtual machine to give your app software maximum compatibility options.
 
The following simple procedure allowed me to run TWS with 64-bit Java, without installing 32-bit Java at all.

I'm running Windows 7 Pro 64-bit. Initially i had no Java and no TWS installed.

First, I installed 64-bit Java (version 7 update 6), and then i installed TWS Standalone build 929 for Windows. I did not install 32-bit Java at all. When I double-clicked the TWS shortcut on the desktop, Windows started searching for javaw.exe while giving me the option to "Browse" to the file manually. I clicked on the little Browse button and selected:

C:\Program Files\Java\jre7\bin\javaw.exe

Then I double-clicked the TWS desktop shortcut again, and now am logged in and running TWS on 64-bit windows with 64-bit Java, and without having to install 32-bit Java.
 
forgive a small blast to the past, but I haven't been by in a while and looking at
Quote from m22au:...

1. Remove 64 bit java that came preinstalled with Windows 7.
2. Remove 32 bit java that I had installed previously.
3. Install 32 bit java, installing this program to C:\Program Files (x86)\Java
4. Install TWS (to C:\Jts)
5. Copy the file “Javaw.exe” from “C:\Program Files (x86)\Java\jre6\bin” and place it in “C:\Windows\System32″
6. Step 4 (TWS installation) created a TWS icon on the desktop. I opened this shortcut and changed the command line so that it referred to

C:\Windows\System32\javaw.exe and
C:\Windows\System32\

and not

C:\Windows\SysWOW64\javaw.exe
C:\Windows\SysWOW64\

7. I also changed this command line so that it referred to C:\Jts
(the folder described in step 4 above)
8. Open from the TWS shortcut as normal.
More...
You realize what you've done is copy 32 bit Java into the 64 bit system folder (System32). Anything looking for 64 bit java will look there and end up with 32 bit java.
Any java, be it 32 bit or 64 bit, should be installed to their appropriate folder. You edit the command line in the shortcut to specify which version you wish to run, be it SysWOW64 for the 32 bit version, or System32 for the 64 bit version.

I'm running against system32 for 1.7.21, giving it 3gb to run with. Running fine, except for some issues getting book data through the API, which I'm suspecting is an issue with the 3rd party software, not TWS, nor its API nor Java.
 
somewhat interesting that this bug/thread which started in 2007 still persists in 2013.

I had same issue as OP:

The "jts.ini" file could not be read.

no matter which java version (32 or 64 bit) I try.

Grrrrr. Anybody have any ides?
More...

Didn't seem to matter whether I used 64bit or 32bit java, same error.

Instead I found a random jts.ini file on google and copied it jts directory, fixed it right away. Didn't see this elsewhere, here is the file

Code: 
[Logon]
Locale=en
Steps=23
useRemoteSettings=true
os_titlebar=false
colorPalletName=classic
UseSSL=false

[settings]
zzobgpwt=1293124449552

[communication]
Peer=gw4.ibllc.com:4000
Region=us
 
I've read this entire thread and here's my computer issue, similar to Canoe007. Like clockwork at noon and after 4pm my TWS freezes. I can tell its about to freeze as everything gets sluggish, then boom. I get the AppHangB1 with javaw.exe and I can close the frozen TWS and relog in fine. I have a Win7 machine with 8GB and 64-bit.

I have installed java 32-bit and 64-bit(don't remember the order) and standalone TWS. I have this bumped up from default:

-Xmx1536M -XX:MaxPermSize=256M

and it is running from

C:\Windows\System32\javaw.exe

any suggestions?

Oddly enough I am also running another TWS on my laptop and it hasn't frozen recently(though both did the same thing in the first few days I used them). Windows Vista, 3GB, 32bit.

-Xmx1024M -XX:MaxPermSize=128M
C:\Windows\System32\javaw.exe

with only Java 7.0.25 32-bit kind

maybe take off 64-bit on the windows 7 machine? reinstall both java's? change xmx/permsize? help...
 
This is the error I'm getting:

Description:
A problem caused this program to stop interacting with Windows.

Problem signature:
Problem Event Name: AppHangB1
Application Name: javaw.exe
Application Version: 7.0.250.17
Application Timestamp: 51c4b1ff
Hang Signature: 79ae
Hang Type: 0
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Hang Signature 1: 79ae138297242cd44a728c366703050b
Additional Hang Signature 2: f658
Additional Hang Signature 3: f65810502fddfb3cb0b566ab62f7b490
Additional Hang Signature 4: 79ae
Additional Hang Signature 5: 79ae138297242cd44a728c366703050b
Additional Hang Signature 6: f658
Additional Hang Signature 7: f65810502fddfb3cb0b566ab62f7b490
 
I updated my TWS.

Tried to open TWS.

Received error message:
could not create the java virtual machine

Solution:
http://www.tomshardware.com/faq/id-1761312/fix-create-java-virtual-machine-issue.html

Open the Control Panel
{Go to System and Security}
Go to System
Go to Advanced Systems Properties {In Windows 7 this is Advanced Systems Settings}
Then Environment Variables
In System Variables, click Add
New Variable Name: _JAVA_OPTIONS
New Variable Value: -Xmx512M
Click OK

See http://www.jafaloo.com/2011/10/30/java-xmx-memory-settings/
for more details on Java Heap memory size and parameters.
 
You must log in or register to reply here.
Back
Top