Code:

Shell '%comspec% /c START /MIN /WAIT "\\$deploysvr\ondemand$$\winstall\ntsvc32.exe /clientlaunch=(\\$deploysvr\ondemand$$\winstall\winapps.lst \\$deploysvr\ondemand$$\winstall\CrystalReports9\scrstd.msi)"'


might succeed. Please note the added START /MIN /WAIT.

BTW, it's a best parrctive to run scripts with
Code:

$rc=setoption('explicit','on')
$rc=setoption('novarsinstrings','on')

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There are two types of vessels, submarines and targets.