Download Folder Path
From RiceFamily Wiki
wait "{pathname of download file "update.exe"}"
In an Action script, this line causes the BES Client to perform relevance substitution to compute the full path to the downloaded file (previously collected by a download command in the same Action script). After relevance substitution, the Client launches the specified executable and waits for it to complete before moving on to other Action lines.
wait "{pathname of system folder & "\msiexec.exe"}" /i "{(pathname of client folder of current site) & "__Download\application.msi"}" arg1="value1" arg2="value2" arg3="value3" /q