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VB.NET Call executable with parameters in VB Script

Posted on 2007-07-20
Medium Priority
Last Modified: 2008-01-09
I have the following code, plink is is an executable. I am running this code from the same directory as the executable. When I am testing the code it does not seem to be working. Any ideas why this might be, all of the variables are being assigned correctly. If I type the command directly into a command prompt it works. Any ideas why this isnt working, also is there a way to get the output that the executable is sending out and print it wo screen?

Set objShell = CreateObject("WScript.Shell")
Set objExec = objShell.Exec("cmd /c plink '" & LoadBalancer & "' -l '" & Username & "' -pw '" & Password & "' bigpipe node '" & RebootComputer & "' down")
Question by:Benjamin297
  • 2
LVL 31

Expert Comment

ID: 19530129
execute the script that u only see the command in a msgbox!
Then u can verify that's all right!

msgbox "cmd /c plink '" & LoadBalancer & "' -l '" & Username & "' -pw '" & Password & "' bigpipe node '" & RebootComputer & "' down")
LVL 65

Accepted Solution

RobSampson earned 2000 total points
ID: 19530515
Hi, you can try replacing your single quotes in the command with the double-quote character, which you "double-up" in VBScript to represent one literal quote inside a string.
For example:
strString = "test string here"
outputs: test string here
strString = "test ""string"" here"
output: test "string" here

So, you can try:
objShell.Exec("cmd /c plink """ & LoadBalancer & """ -l """ & Username & """ -pw """ & Password & """ bigpipe node """ & RebootComputer & """ down")

And also, instead of MsgBox, I tend to use an InputBox so you can just copy and paste the exact text into a command line:
strCommand = "cmd /c plink """ & LoadBalancer & """ -l """ & Username & """ -pw """ & Password & """ bigpipe node """ & RebootComputer & """ down"
strCommand = InputBox("Prompt", "Title", strCommand)
Set objExec = objShell.Exec(strCommand)


LVL 31

Expert Comment

ID: 19530591
or try the vbscript function: Chr(34)  
this makes " too

Try also:
objShell.Run not Exec

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