unable to locate dll error

[DMerchen]

I built an application using Application Builder, but when it is installed on another machine it gives me the errors unable to loacte dll. The Labview6.1 runtime engine and VISA runtime engine have been installed. Is there something I am missing when building my application?

[Dennis_Knutson]

Did the application builder create a "Data" folder and did you copy that to the other machine? If you created an installer and used that, then all of the dlls should have been installed with the application unless you have included a dynamic VI that you had to manually add to the build. The run-time engine and VISA do not include all of dlls that a LabVIEW application might need. Does the error message list the name of the missing dll? Providing that little bit of information would help.

[DMerchen]

It did create a data folder, and it did copy that to the other computer. I created an installer also. The name of the dll is nipalu.dll, nipalut.dll, nidaq32.dll, etc. Everytime we copy one over that it shows we are missing, it comes up with a new one. Do I just copy all dlls associated with Labview?

[Dan_Mondrik]

You should never manually copy NI files that seem to be missing. You are almost guaranteed to have it fail because each component often must be registered in a specific way (with the OS or with other NI components). The only way to solve it without headaches is to run the appropriate NI installers.

This is no different than trying to manually copy Microsoft files. Patching OS files by any means other than Microsoft sanctioned service packs can render your PC unbootable. Fortunately missing NI files only leaves your application unusable...

Dan Mondrik
Senior Software Engineer, NI-VISA
National Instruments

[DMerchen]

Thanks fot the assistance. Discovered someone had uninstalled NI-Daq. Problem solved. Thanks again.