compatibility 32 bit application to 64 bits / Application error LWTCPJSOCKWNDYCLASS

[LY_assistance]

Hello 

I have developed a test application on a 32-bit PC with LabWindows CVI V6 and would like to run on a PC with Windows 7 64 bit. I tried to install it, but when I run my application the following error message appears: "LWTCPJSOCKWNDYCLASS: MyApplication.exe - Application Error - The application failed to start properly (Oxc0000142)" .

Is this a problem due of compatibility with 32-bit / 64 bit?

if so how do I proceed to make it compatible with this new PC?

 

Thank you for your help

[Wolfgang]

did you try using the latest CVI runtime?

[LY_assistance]

Dear Wofgang,

No I haven't try with the latest CVI Runtime. Where can i find it ?

Thank you

[Wolfgang]

on NI's web site; search for support / driver and updates / CVI; here is a page with the link: http://joule.ni.com/nidu/cds/view/p/id/1525

[LY_assistance]

Dear Wolfgang,

I've just try with the CVI RUNTIME updated, but it does'nt work any more. Do you have another idea ?

Regards

[Wolfgang · Accepted solution]

sorry that it wasn't successful. Are you using any other software such as GPIB, VISA,...? If so, you might want to check the NI site if you need to upgrade the corresponding drivers...

[tstanley]

If the Windows 7 PC is already running a newer version of the Run-time engine, you might try checking the "Install in Application Directory" as the "Run-Time Engine Install Location" on the computer you build with.  Newer versions of the CVI Run-time engine are supposed to be backwards compatible but I've occasionally run into issues.  On the other hand, I did recently run into a minor problem with FileSelectPopup() using the 7.1.1 Run-Time engine on Windows 7 so you could very well run into other problems.

[LY_assistance]

Dear Wofgang,

Thank you for your last message, I've updraded the GPIB software and it's run well.

Regards

[LY_assistance]

Thankyou TSTANLEY for your help.

[johkmon]

I have an old working code environment.

It was rebuilt with appropriate changes for Visual Studio 2010. 

The Whole package was rebuilt on the appropraite test set with VS 2010 and CVI 9.0 runtime present.

When I try to launch a dynamic binding version of the code the following error occurs.

LWTCPJSOCKWNDYCLASS:  TestApplication.exe  -  Application Error

The exception unknown software exception(0xc0000417) occurred in the application at location 0x78b2ae6e

If I launch a non dynamic version it gets past this error and runs intializations but terminates with a memory error later.

The dynamic version does not do this at my desk PC where I dont even have instruments to talk too????

But it quits do to missing instruments to initialize.

The VS2003/cvi 7.1  build build works fine from the same directory????