executable won't run on target PC

[Stu-Qub]

Hi

I have written an application to control a 'Data Translation' PCI data acquisition card (DT302) using LabVIEW (8.6.1). I have used Data Translations 'LVLink' VIs in the application. It works perfectly on the development PC as a VI and as an executable.

The problem arises when I try to run the executable on a target PC. The program fails to recognize the DT302 card. I believe I have the necessary extra files/software installed:

• LabVIEW RTE (8.6.1)
• DT Open Layers for .NET Class Library
• LVLink2.dll
• Driver for DT302 card

I know the card is installed correctly as it can be recognized by other (non Labview) programs. I think I may require an additional file or .dll but I'm not sure.

Any help would be greatly appreciated

Thanks

Stuart

[James_W]

Hi Stuart, 

If you can tell us which dlls are dependencies of the project, we can probably tell you what you need to include in your installer. You may be missing something like VISA runtime if the VISA protocol is being used.

James

[Stu-Qub]

Thanks for your help.

The dlls shown as dependencies are:

• advapi32.dll
• Kernel32.dll

[James_W]

---

Stu-Qub wrote:

Thanks for your help.

The dlls shown as dependencies are:

• advapi32.dll
• Kernel32.dll

---

A quick search on the forum came up with advapi32.dll as a windows dll, and I know Kernel32.dll is a windows dll.

Unless advapi32.dll is not on the destination PC, I have no suggestions, this isn't as simple as it might have been.

You could try including advapi32.dll in the installer and see if that fixes the problem, if you are not installing to a windows machine of the same OS, that may be your problem.

Now I really am out of ideas for now. - this looks like a job for Rolf K or one of the other gurus.

James

[Stu-Qub]

Both dlls are on the target PC (both computers running XP). I really am stumped.

[James_W]

you haven't done something silly in the exe - like tick the box that requires the development environment on the PC when the exe is deployed have you?

James

[Stu-Qub]

I think that is only an option if you're building an installer - I have only created an application (.exe)

[Stu-Qub]

Ok - an update. I had a spare PC with LabVIEW 8.6.1 installed. I uninstalled LabVIEW, installed the files mentioned above, tried my application and it works. However, it still doesn't work on a 'blank' computer. Anybody have any idea why this is??

[James_W]

Suspect this is due to a relative path call to the dlls being created by the calling VIs when you compile.

It may be due to a version difference in the files mentioned on your PC and the ones used on the "blank PC".

Recommend you make an installer which includes the dlls and re-installs them to the PC - it is possible that the NI calls to the dlls are modifying them or the registry.

James

Edit:

Compare the Path between your LabVIEW PC and your blank one

Also check the correct params are inserted in the path for any calls to functions external to LabVIEW, this could be causing breaks if %PATH% has not got the required files in it.

Message Edited by James W on 05-18-2010 04:31 PM