What OS are you using? I looked in Kernel32.dll for WinXP and Win2000 and didn't see this symbol as an exported entry point. When are you getting this error? My suggestion is to use depends.exe which can be found on
this page to find out what component is referencing this entry point. Post a screen shot of the depends output if you see something suspicious. I don't think upgrading to NI-DAQ 7.3 will affect this problem.