Best not to just ignore it tho. Do you get any additional information? Could be a system file problem - might be worth running a system file check. Goto Programs, accessories, right click on command prompt, run as administrator and enter the command:
If it isn't a system operation, you might use msconfig.exe to check what is loading and trying to run. If you see something that might be causing such a problem, you can uncheck it to keep it from starting. If the messages stop, then that is probably the errant utility and you can tie it to the main utility.
Also, perhaps there is something in the event viewer that might help. Tie the time the message pops up to the errors or warnings (eventvwr.msc).