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Script Debugging

Script debugging aids in the development and maintenance of model scripts, and monitoring their activity at the time of execution. While debugging a script, you can:

  • Control execution flow using the 'Debug', 'Step Over', 'Step Into', 'Step Out' and 'Stop Script' buttons on the Script Editor toolbar
  • Set Breakpoints, Recording Markers and Tracepoint Markers
  • Use the Debug window to view output generated by the script
  • Use the Locals window to inspect values of variables, including objects from the Automation Interface
  • Use the Record & Analyze window to record a Sequence diagram of the script execution



Specialize > Tools > Scripting > Scripts > right-click on [script name] > Debug Script


Script Editor window toolbar : Click on the Start test. toolbar icon

Begin debugging a model script



See also


Open a model script in the Script Editor.

Scripts Tab Script Editor


Set any Breakpoints on the appropriate line(s) of code.

Setting Code Breakpoints Marker Types


Click on the Start test. toolbar icon (Debug).


  • Script debugging is supported for VBScript, JScript and JavaScript
  • VBScript and JScript require the Microsoft Process Debug Manager to be installed on the local machine; this is available through various Microsoft products including the free 'Microsoft Script Debugger'
  • Breakpoints are not saved for scripts and will not persist when the script is next opened
  • While debugging, script output is redirected to the Debug window

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