Tftp on Labview 2010 and windows 7

Question

I am having difficulty running tftp on my Labview 2010 on windows 7 using the system exec vi. I already enabled tftp client on windows 7. What is interesting is that tftp runs when I execute it directly from the command prompt but gives an error when I try using the system exec vi. The error says tftp is not recognized as an internal or external command, operable program or batch file . Please help. I have attached the vi I used
Attachments:
tftp_problem.vi ‏8 KB

Answer 1

If you use system exec, you either have to specify the entire path to the executable or if it is a system utility, launch the Windows Command Shell utility first with "cmd /c" and prepend the rest of your command after that. System Exec is NOT the Windows command shell but simply a way to spawn a new process. As such it has no notion of "Windows", "System32" and what else directories to search for unqualified command utilities. The only paths it probably will recognize for such unqualified commands is the "current directory path" and possibly the directories in the PATH environment variable. It won't look for directory paths that are specified for the Windows Shell in the registry.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions