this is the command line from "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Adobe Acrobat 5.0

C:\WINDOWS\ISUNINST.EXE -f"C:\Program Files\Common Files\Adobe\Acrobat 5.0\NT\Uninst.isu" -c"C:\Program Files\Common Files\Adobe\Acrobat 5.0\NT\Uninst.dll

If I recall correctly a S or Q arount the -c will force a silent install (unless Acrobat has changed from version 4)

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