updating *.dll for pxi

[Newguy100]

Hi,

    I am new to using PXI and have a few questions regarding software. I created a .dll software in labview version 7.1. Since the PXI I am using uses version 6.1, I had to convert it. I was able to do that but when I run it on the PXI, I get an error message: "Secondary DLL Cannot Be Found" I did research on it at the ni website and discovered that my dll needs other dlls to run. I checked the files on the station I am using and they are from 2004. However, on the PXI that I am currently using the .dll are from 2000. I was wondering if it was ok to replace those *.dll files.

[Jack J.]

When you said, that you converted it to 6.1, do you mean that you converted the VI that calls on the DLL to 6.1?

Since the DLL was created in 7.1, you will need to have the LabVIEW 7.1 Run-Time engine on the PXI in order to call the DLL. You can find it at: http://digital.ni.com/softlib.nsf/websearch/71B1D78C8DFBA33786256E7D00724692?opendocument&node=13207...

I believe once you install the Run-Time engine, it should work.

Reply if this doesn't work and we can investigate further.

Jack J.

Applications Engineer

National Instruments

[Kay Kay]

Hello Sir, For my application, I need LabVIEW Runtime Engine 7.1 but I have installed 7.1.1. But my application needs LabVIEW Runtime Engine 7.1. Hence, I would like to unistall the LabVIEW Runtime Engine 7.1.1. IS there any way to unintall this program. I couldnt find this in ADD/REMOVE programs. I would appreciate any kind of assistance.

[Jack J.]

The LabVIEW 7.1.1 runtime engine should be able to run exes created in LabVIEW 7.1 since it is minor build upgrade. What kind of errors are you getting when you try to run your program.

Regards,

Jack J.
Applications Engineer
National Instruments