When NIDEVMON launches, it cannot find niorbu.dll.

[crescent]

I recently installed LabWindows/CVI 8.5.1. Now I get a message at startup stating the nidevmon.exe cannot find niorbu.dll. How do I fix this nusance message.

Thanks

[ldp]

What version of NI-DAQmx do you have on your computer?

Thank you
LDP

[crescent]

I have DAQmx 8.7 installed.

Charlie

[ldp]

Does NIORBU.DLL exist in the Windows system folder?
Can you load the DLL in CVI? (using the LoadLibrary() call)
If not, what error message do you get?

LDP

[crescent]

That DLL is not anywhere on my harddrive. Did installing 8.5.1 or one of its components delete this file?

Charlie

[ldp]

The LabWindows/CVI installer does not delete or install this DLL.
Did you reinstall the driver CD after installing CVI 8.5.1?
What version of CVI and NI-DAQmx did you have on the computer before?
Did you get any errors during installation?

Best regards
LDP

[S_Hong]

Hi crescent,

I believe that your drivers may have been corrupted. Often this problem is associated with a bad NI-DAQ (Traditional DAQ) or NI-DAQmx installation. Try removing both drivers and installing the latest driver versions. If you are unable to remove your current version of the driver or if you do not see it being listed under your National Instruments Software in Add/Remove Programs, you may have to use MSI Blast to remove it.

http://forums.ni.com/ni/board/message?board.id=250&message.id=34373&requireLogin=False

Please keep us posted on your progress.

[crescent]

I am not sure which DAQ versions were installed before. I suppose it was whatever came with LabWindows 8.1. That was the last version I had installed.

When

[crescent]

Sorry,

I hit something that closed my last reply my mistake.

As I was saying, When I attempted to remove Labview 7.0 which the installer said was unsupported, I kept getting error 1612 messages. And, some items that I had selected for removal and their dependent items were not removed.

Does MSI Blast allow removall of selected items?? Or do I have to install everything. If I have to remove all NI software to save one mouse click at system boot time, then I am just going to live with the message until I encounter a good reason to go through all that work. I have serveral version of LabWindows/CVI installed to allow me to build older versions or my applications. I do this because sometimes I have to debug older versions of qualified (medical device manufacture) software.

Thanks for your help. I will consider fixing this at my next major upgrade.

Charlie

[S_Hong]

Hi crescent,

MSI Blast is a tool that exposes all the MSI (Microsoft Installer) files on a system and allows them to be removed individually. An MSI installer can be set to either visible or invisible and sets whether it appears in Add/Remove Programs. One reason for having invisible MSI installers is to hide programs that are dependent on a main program. In this case, when you uninstall the main program, it will call uninstallers that are not visible in Add/Remove programs.

However, before proceeding with using MSI blast, I would recommend simply uninstalling and reinstalling both the DAQmx and Traditional DAQ drivers to see if this fixes the problem. Proceeding with MSI blast should only be used as a last resort and at your own risk.