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There is a general problem here, and the solution is non-trivial I think. It is fairly easy to get into a situation where a script is blocked waiting on a spawned application which has a dialog up waiting for a user action. Visual Studio 7.x is a real pain like that! It brings up a dialog when there is a problem with the command line, but doesn't tell you exactly what the problem is and has no way of suppressing the dialog.
Is it possible to time out spawned applications and continue the script with a step failure? Icing would be to look a processor load and only time out if activity were below some threshold.
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