system exec problem

[happybird]

Hi there,

I am trying to use system exec.vi to run a MS-DOS application, in the DOS command prompt, under the c:\temp folder, I input: echo load tcli2c.dll tclusb | tclsh,  the tcli2c.dll is a dynamic link library, it is located in c:\temp. i will get:

"Device handle

VID&PID both match

Inreport len 65

Device detected"

However, when i input the same command in labview, i did not get anything in the standard output.

Anyone can tell me the reason? the command I input in labview is : cmd /c echo load tcli2c.dll tclusb | tclsh

attached is my code,

thanks,

Mike

Message Edited by happybird on 08-16-2007 05:26 PM

Message Edited by happybird on 08-16-2007 05:27 PM

[RavensFan]

Why do you keep asking the same question in different threads?  You've asked about the system exec command several times  such as here and here and here

Maybe your problem isn't with system exec, but with this "TCL" program.  Maybe it's not supposed to be used the way you are trying to use it.