Hi Goy,
I've seen this problem happen whenever I've removed any of the files
that get installed with LabVIEW...I've also seen it happen when a DLL
that gets installed with LabVIEW is overwritten with a DLL of a
different version. My best suggestion would be for you to go to
Add/Remove Programs, select National Instruments Software, select
LabVIEW from the resulting list, and choose the "Repair" option...this
replaces all LabVIEW files with the originals from the LabVIEW
installer (so use this option with caution if you have purposely
modified anything that installs with LabVIEW, like VIs from
vi.lib). Other than this, I'm not sure what the problem could
be...you may have some other program/installer that is attempting to
remove or modify files that were originally installed by LabVIEW.
Good luck,
-D