topic Re: Network variable problem in 64 bit application in Measurement Studio for .NET Languages

Network variable problem in 64 bit application

Yltsä — Mon, 01 Oct 2018 07:37:19 GMT

Hi,

The network variable does not work in our 64 bit application but 32 bit works OK. For example this function fails in 64 bit application:

ServerProcessInfo processes = ServerProcess.GetAll();

Error message = "Unable to load DLL 'ninetv.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"

Is it so that 'ninetv.dll' works only in 32 bit environment? Is there 64 bit or a common version somewhere?

Thanks,

Ilkka

Re: Network variable problem in 64 bit application

TBasel — Sat, 13 Oct 2018 16:49:42 GMT

You can manipulate this problem by using Shared Variables, the shared variables should not care the LabVIEW bit version of a file.

To open the examples on LabVIEW window, click on Help and select "Find Examples..."

For Shared variables
Go to Fundamentals/Shared Variable

Can you tell what version of Windows year and bit version and what LabVIEW year and bit version you are using?

Also, please have a look for this solved problem, it has some similarties to your issue

Re: Network variable problem in 64 bit application

Yltsä — Sat, 13 Oct 2018 17:11:43 GMT

Hi, I am not using LabVIEW This is a pure .NET/C# application using Ni libraries from Measurement-Studio-for-NET

Re: Network variable problem in 64 bit application

TBasel — Tue, 16 Oct 2018 13:22:23 GMT

This used to be true problem for old versions of .NET libraries for 64 bit.

What version you are using?

Re: Network variable problem in 64 bit application

Yltsä — Mon, 15 Oct 2018 15:45:53 GMT

Hi, the link does not work in your previous post.

yes, this is related to 64 bit libraries. In 32 bit application everything works correctly.

Re: Network variable problem in 64 bit application

TBasel — Tue, 16 Oct 2018 13:22:03 GMT

I meant by what version is what year version not 32/64 version, in other words year of release?

Re: Network variable problem in 64 bit application

Yltsä — Tue, 16 Oct 2018 07:24:12 GMT

Hi, thank you very much for the help. But maybe that document for Measurement Studio 2009 is not valid anymore. It is mentioned ninetv64.dll library, which is 64 bit version of ninetv.dll, in the Word document.

ninetv64.dll is not installed in my computer. Also Google or NI web search find no info about it.

BR,
Ilkka

PS: Our application runs OK in 64 bit environment if we do not use the network variables.

Re: Network variable problem in 64 bit application

TBasel — Wed, 17 Oct 2018 09:39:09 GMT

It really helps if you provide what Windows year version you are using. Beside that NI MAX report to be attached in your reply.

This is how to generate the report: https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P9mPSAS

Regards

Re: Network variable problem in 64 bit application

Yltsä — Wed, 17 Oct 2018 11:26:17 GMT

Hi,

We run the 64 bit application in mostly in Windows 10 but sometimes also in Windows 7 in .NET 4.7. Our software is sold and deployed into many paces so it is not just one computer.

The 64 bit network variable problem is in every 64 bit Windows. It is usually not a problem because we need the shared variables only in few places (those are skipped at the moment). But there are now two customers asking a to restore the feature what is based on NI shared variables. We could just switch to 32 bit sw but it would be better to fix the 64 bit sw.

I have Windows 10 Professional version 1809 in my own computer. Measurement Studio is the newest what NI has released.

The MAX report is attached into this message.

BR,

Ilkka

Re: Network variable problem in 64 bit application

TBasel — Tue, 23 Oct 2018 14:43:03 GMT

Hi,

What version of Visual Studio you are using with Measurement Studio?

I am asking because according to this link (http://zone.ni.com/reference/en-XX/help/375857A-01/xml/64bitsupport/), Measurement Studio 2015 provides Support for Visual Studio 2013 with Network Variable library supported. So these two mentioned versions are compatible with each other and should be OK for your application.

So running newer version than Measurement Studio 2015 for older version than Visual Studio 2013 might not be compatible with each other and causing this issue.

Regards

Re: Network variable problem in 64 bit application

Yltsä — Wed, 24 Oct 2018 11:08:16 GMT

Hi,

I use only the libraries from Measurement Studio 2015. That is the "newest" what NI has released. The Visual Studio version is not an issue.. It is needed also some libraries from Visual Studio 2013 to put the SW working so I have also VS 2013 in the development computer.. Officially Measurement Studio supports only VS 2013.

BR,

Ilkka

Re: Network variable problem in 64 bit application

TBasel — Thu, 25 Oct 2018 14:59:40 GMT

Hi,

Will send us the code that you are facing the problem on, we would like to replicate the issue on a PC.

Regards

Re: Network variable problem in 64 bit application

Yltsä — Fri, 26 Oct 2018 11:33:32 GMT

Hi,

I made a new test application by using Visual Studio 2013. If you compile and run that in 64 bit mode there is the same error. But in 32 bit mode it is OK. Please test the attached application.

Re: Network variable problem in 64 bit application

Yltsä — Fri, 26 Oct 2018 12:16:33 GMT

Here is an another test. I copied ninetv.dll into the bin directory. So it is found now but in a wrong format:

Re: Network variable problem in 64 bit application

TBasel — Tue, 30 Oct 2018 13:31:11 GMT

Hi, We just escalated this issue, expecting to have the answer soon.

Thanks for your patience.

Regards.

Re: Network variable problem in 64 bit application

TBasel — Wed, 31 Oct 2018 13:58:41 GMT

The last error message indicates that there is a mismatch issue, namely a 64-bit process is trying to call into a 32-bit DLL. In Measurement Studio 2015 the NationalInstruments.NetworkVariable.dll works for both 32 and 64-bit processes and We only have one copy of ninetv.dll which should also work for both.

We see that the referenced documentation which indicates in older versions did have a separate 64-bit implementation, ninetv64.dll. It may be possible that you had an old version on your system that is 32-bit specific which could cause this problem.

Can you check the version of ninetv.dll on your system?

Note that since ninetv.dll is shared by all NI products using Network Variables that it should be the version of the highest NI software on your system - in our case that's CVI 2017. The version you should download must be at least a 15.x version (since you use MStudio 2015 on your system).

Finally, is this error happening on your development system, deployment system, or both?

Re: Network variable problem in 64 bit application

Yltsä — Wed, 31 Oct 2018 14:34:06 GMT

Hi, here is the ninetv.dll what is used. Version 15.0.1.239:

BR,

Ilkka

Re: Network variable problem in 64 bit application

TBasel — Mon, 05 Nov 2018 09:01:29 GMT

Can you please answer the following two questions:

Is this error happening on your development system, deployment system, or both?
Can we get a fusion log from your system?
- A fusion log will show us detailed information about how the .NET run-time is locating and loading dependencies, which hopefully will indicate why this assembly load is failing.
- Also, disable fusion logging after sending it to us - if you leave it on the fusion logs can grow quite big.

Best regards

Basel

Re: Network variable problem in 64 bit application

Yltsä — Mon, 05 Nov 2018 19:35:00 GMT

Hi,

Yes, the error is happening in both systems.
The Fusion logs are attached in this message. There are two cases:
- Case 1: The ninetv.dll file is not copied in bin directory
- Case 2: The ninetv.dll file is copied in the bin directory

I used the sample Program posted into this thread before. Not our original software but the results are the same.

BR,

Ilkka

Re: Network variable problem in 64 bit application

TBasel — Fri, 09 Nov 2018 12:07:51 GMT

Hi,

Can you please, verify which location you are pulling ninetv.dll from? Put the whole path or screen shot it.
Thanks.
Basel