What version of DIAdem are you using, and what operating system are you using it on? I have seen this issue once before, and it was because someone was trying to use DIAdem 10.1 on Vista. The only version of DIAdem that is currently supported by Vista is 10.2, which can be downloaded here:
Datafinder, which is what is causing this error on your machine, is only installed when DIAdem is installed. Are you using DIAdem for any of your applications? Are you communicating with DIAdem from LabVIEW in any manner? If none of your development within LabVIEW has to do with DIAdem, there is no need for the datafinder to be on your machine. If you look down on the system tray by the time, do you see a yellow cog (gear)? If so, is this cog sitting on a red or blue surface?
NickB National Instruments Applications Engineering