It looks like you set up a WinPE task but are trying to run it in DOS PE. The two environments have different tools, and therefore different commands. The line that is failing is essentially LANDesk saying, "I know I need to be in WinPE for this task. Let me known when you're there." Of course, since you're in DOS PE, that response is never properly given, so the task times out after 30 minutes (1800 seconds) of waiting.