I most often find that with InstallShield silent installs, regardless of shell or START /W, it won't wait for the install to finish.
code:
? "We have now to install IBM CA but first cleanup from prior installs"
SHELL 'deltree /Y "%TEMP%\_ISTMP*.DIR"'
CLS

? "Launching the main install"
run '"\\ffsms\Seed\IBM Client Access\Express\Setup.exe" -S'

;? "Waiting for the core install to start"
sleep 10

? "Waiting for the core install to finish" ?
$Index = 0
while exist("%temp%\_ISTMP1.DIR")
  "."
  sleep 10
  $Index = $Index + 1
  if $index > 20
    $RC = MessageBox("NOTICE!" + Chr(13) + "Installation did not complete within a reasonable time!"
    + Chr(13) + "Please notify the FF HelpDesk at ext. 1864","IBM Client Access Express",48,60)
    goto finish
  endif
Loop
_________________________
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