Pull variable from MDT

[mortalwombat]

I am trying to use a variable from MDT in my AutoIT script. The only help I have been able to find on this is from this thread.  In MDT, my variable is named TermID. When I try this code, I would expect it to pre-populate the input box with the value of TermID from MDT.

$Var = "TermID"
$SCCM = ObjCreate("Microsoft.SMS.TSEnvironment")
$VarResult = $SCCM.Value($Var)
$termID = InputBox("TermID", "Enter the Terminal ID for this MDC", $VarResult, "", "", "", "100", "100")

However, when I run the script I get the error "Variable must be of type "Object"." References the third line. I am fairly new to scripting so I'm not too sure what that means or what I'm doing wrong. Any help would be greatly appreciated. 

[gruntydatsun]

The following requirements apply if you want to access objects on remote computers:

• 
  
• The user running the script must have the appropriate permissions.
  
• The Object on the remote computer must support DCOM (Distributed COM)
  
• The remote computer must have 'Remote Registry Service' and 'File and Printer sharing' services running.

 

 

Are all of these satisfied?

[mortalwombat]

I'm not running it on a remote computer. I am using a task sequence that defines a task sequence variable, then launches the autoit exe. Or are you saying the deployment server needs to meet those requirements?

[mortalwombat]

I think I may have just found an alternate way to approach this. MDT writes variables to a temporary .dat file that is in XML format. The XML looks like this: 

<?XML Version="1.0"?>
<MediaVarList Version="4.00.4345.0000">
  <var name="TERMID">
    <![CDATA[SPMXY]]>
  </var>
</MediaVarList>

I essentially need to get the value of the TERM ID, which in this case should be SPMXY. 

[mortalwombat]

OK, I worked it out! So here's a recap for anyone who may follow behind me:

I found that MDT writes a it's variables to C:\MININT\SMSOSD\OSDLOGS\VARIABLES.DAT while it's running, then deletes it when it's finished. The .dat file is in XML format, so I was able to query it. The XML format looks like this: 

<?XML Version="1.0"?>
<MediaVarList Version="4.00.4345.0000">
  <var name="TERMID"><![CDATA[123]]></var>
  <var name="VARIABLE1"><![CDATA[ABC]]></var>
  <var name="VARIABLE2"><![CDATA[XYZ]]></var>
</MediaVarList>

The code that I used to query the different variables looks like this:

$datfile = "C:\MININT\SMSOSD\OSDLOGS\VARIABLES.DAT"

If FileExists($datfile) Then ;check to see if file exists. If so, load the file
    ConsoleWrite("File Exists - Loading " & $datfile)
    Local $oXML = ObjCreate("Microsoft.XMLDOM")
    $oXML.load($datfile)


    For $oConfig in $oXML.selectNodes("//var") ;select each of the var nodes in a loop
        $sAttribute = $oConfig.getAttribute('name') ;for each var, get the 'name' attribute
            If $sAttribute == "TERMID" Then ;if the 'name atribute is 'TERMID', write that to a variable and echo the termID in the console
                $myTermID = $oConfig.text
                ConsoleWrite($myTermID & @CRLF)
            ElseIf $sAttribute == "Variable1" Then ;if the 'name atribute is 'Variable1', write that to a variable and echo the variable in the console
                $myVariable1 = $oConfig.text
                ConsoleWrite("Variable1 => " & $myVariable1 & @CRLF)
            ElseIf $sAttribute == "Variable2" Then ;if the 'name atribute is 'Variable2', write that to a variable and echo the variable in the console
                $myVariable2 = $oConfig.text
                ConsoleWrite("Variable 2 => " & $myVariable2 & @CRLF)
            EndIf

    Next
Else
    ConsoleWrite("Dat file does not exits.") ;If file does not exist, echo error to console
EndIf