You are apparently missing the error code file that describes that error. It is C:\Program Files\National Instruments\Shared\errors\English\NI_Platform_Services-errors.txt. Perhaps someone did some house cleaning and deleted some files? In any case, if you do a repair of the installation all should be OK. You do this by selecting Start >> Control Panel >> Add or Remove Programs, select National Instruments Software, click Change, select NI DAQmx 7.2, then click Repair.
You might want to spend some time though, trying to figure out how this happened, or it is liable to happen again. If your investigation leads you to believe there is a problem with the product, please report it.
Roy