vbScript - Get running environment

The following vbScript Function delivers the value true if the script runs within a task sequence environment. If not the functions delivers the value false. This function can be useful in scripts like wrapper and so on.

...
If RunningInTaskSequence = True Then
...

Function RunningInTaskSequence()
 On Error Resume Next
 Err.Clear
   Dim objTSEnv : Set objTSEnv = CreateObject("Microsoft.SMS.TSEnvironment")
 If Err Then
  'Script does not run within the Task Sequence environment
     RunningInTaskSequence = False
 Else
  'Script does run within the Task Sequence environment
  RunningInTaskSequence = True
 End If
 On Error GoTo 0
End Function